The best email signature software, sorted by use case.
A person, a company of twelve, an AI assistant, an Outlook shop: each needs something different, and the right tool changes with it. The seven folds below say what each group values, rank the picks on it, and quote the complaints that decide them.
We make Signatoro, one of the tools below. We rank it first only where it fits, and say plainly where another tool is the better answer.
Start with the fold that fits you
Tools repeat across folds. Open any pick for its full profile.One good signature, free, today
- Free
- Quick
- Compatible
One person needs a free generator whose signature pastes cleanly into every mail app. Signatoro is free for one person, needs no account before the signature is copied, has a guide for Gmail, Outlook, Apple Mail and Zoho Mail, and puts a small "Get my signature" link under it. If nothing may sit under the signature, HubSpot's free generator lets you switch its link off.
What goes wrong
“it's completely nuts they want to ask for 10-20-50 $/ months for something you set up once.”
“But if I send it to somebody that has Gmail it looks all jumbled up”
- A monthly fee for something set up once
- Signatures that look right in one mail app and break in another
The picks
Ranked for this fold only- 1SignatoroFlatFree, no account before you copy, and install guides for Gmail, Outlook, Apple Mail and more; a small link sits under the signature.Free, or $9 / $19 / $49 a month, plus $1.50 per extra member
Full profileClose profile
An email signature generator that is free for one person, with a flat monthly price by team size for a company of up to 50.
- Works with
- Gmail, Outlook, Apple Mail, Zoho Mail
- Folds
- 01 02 03 04 05 06
Good at- One flat price for the company's size, add members as you grow
- One logo, layout, color, font, review badge and booking button that every signature follows
- Change it once and everyone gets the new signature by email
- No "Get my signature" link, for anyone
- Invite by email; people keep their own name, title and photo
- PNG export and unlimited API requests, for everyone
- A compliance footnote on every signature, from the Up to 15 plan
- Footnote templates for the US, UK, EU and Canada, from the Up to 15 plan
- A history of every footnote change, from the Up to 50 plan
- Signatures keep working after the company stops paying
Not for- Stamping signatures on the mail server; each person pastes once, or installs in one click in Zoho Mail
- Banner campaigns or click analytics
Signatoro's own billing configuration and pricing page.
- 2HubSpot email signature generatorFreeFree, no account, and its link can be switched off.Free
Full profileClose profile
A free signature generator with twelve templates, no account and no trial.
- Works with
- Gmail, Outlook, Apple Mail, Yahoo Mail, HubSpot CRM
- Folds
- 01
Good at- Free with no account
- Its "Create Your Own Free Signature" link can be switched off
Not for- A team that wants one look kept in sync
- A logo it hosts for you; the logo needs a URL of your own
hubspot.com/email-signature-generator, read and tested 24 September 2026.
- 3MySignaturePer seatFree for one signature with its branding, and cheap paid plans.Free for one signature, with its branding; teams $1.80 to $2.40 per user a month, billed yearly
Full profileClose profile
A signature generator with a free tier for one signature and per-person plans for teams.
- Works with
- Gmail, Outlook, Apple Mail, Thunderbird, Yahoo
- Folds
- 01 02
Good at- Cheap paid plans per person
- Team plans that connect to Google Workspace or Microsoft 365
Not for- A free signature without its branding
mysignature.io/pricing, read 24 September 2026. Costs are Teams Standard, billed yearly; whether Standard pushes signatures automatically, as Engage does, was not verified.
Everyone on the same brand, on one bill
- Affordable
- Consistent
- Simple
A company of 2 to 50 people without an IT team needs one look for everyone at a price set by its size. Most signature tools charge per person per month, often with a minimum. Signatoro charges a flat price by size, $9 up to 5 people, $19 up to 15 and $49 up to 50, plus $1.50 a month for each extra member. It locks the logo, layout, color, font, review badge and booking button, and emails everyone their new signature when the brand changes.
What goes wrong
“We have been using this overpriced service for 6 years. We have decided to cancel due to price.”
“Customer service took weeks to respond to a request to add a seat. All plan changes are routed through sales.”
- Everyone edits their own copy, and the brand drifts
- The tools that push signatures centrally need an IT admin
The picks
Ranked for this fold only- 1SignatoroFlatOne price by size, the brand locked for everyone, and a change emails each person their new signature. No admin, and signatures keep working if you stop paying.Free, or $9 / $19 / $49 a month, plus $1.50 per extra member
Full profileClose profile
An email signature generator that is free for one person, with a flat monthly price by team size for a company of up to 50.
- Works with
- Gmail, Outlook, Apple Mail, Zoho Mail
- Folds
- 01 02 03 04 05 06
Good at- One flat price for the company's size, add members as you grow
- One logo, layout, color, font, review badge and booking button that every signature follows
- Change it once and everyone gets the new signature by email
- No "Get my signature" link, for anyone
- Invite by email; people keep their own name, title and photo
- PNG export and unlimited API requests, for everyone
- A compliance footnote on every signature, from the Up to 15 plan
- Footnote templates for the US, UK, EU and Canada, from the Up to 15 plan
- A history of every footnote change, from the Up to 50 plan
- Signatures keep working after the company stops paying
Not for- Stamping signatures on the mail server; each person pastes once, or installs in one click in Zoho Mail
- Banner campaigns or click analytics
Signatoro's own billing configuration and pricing page.
- 2WiseStampPer seatSignatures provisioned from the company directory, for a base fee plus $1 per employee.$19 a month plus $1 per employee, billed yearly
Full profileClose profile
A signature platform that syncs from a company's identity provider and signs through an add-in, a server-side mode, or both.
- Works with
- Google Workspace, Microsoft 365, Apple Mail, Zoho Mail
- Folds
- 02 05 06 07
Good at- Central management that also reaches Zoho Mail and Apple Mail
- Signatures provisioned from Entra ID, Google Directory or SCIM
Not forSignatoro vs WiseStamp →- A base price that already covers the first few people
- A free plan; its pricing page shows none
wisestamp.com/pricing, read 20 September 2026 (costs are Basic); its Zoho Mail and Apple Mail support articles, read 24 September 2026.
- 3NewoldstampPer seatA central dashboard with banners, about $1.82 per signature; signatures stop when the subscription does.About $1.82 per signature a month, billed yearly
Full profileClose profile
A centrally managed signature platform billed per signature, with banner campaigns and analytics built in.
- Works with
- Google Workspace, Microsoft 365, Exchange
- Folds
- 02 04 05
Good at- A central dashboard that pushes to Google Workspace, Microsoft 365 and Exchange
- Banner campaigns and click analytics
Not forSignatoro vs Newoldstamp →- Signatures that keep working after the subscription ends; its FAQ says they stop
newoldstamp.com/pricing, read 20 September 2026 (five signatures, $109 a year) and 24 September 2026 (ten, $219 a year; thirty, $479 a year).
- 4MySignaturePer seatCheap per-person team plans that connect to Google Workspace or Microsoft 365.Free for one signature, with its branding; teams $1.80 to $2.40 per user a month, billed yearly
Full profileClose profile
A signature generator with a free tier for one signature and per-person plans for teams.
- Works with
- Gmail, Outlook, Apple Mail, Thunderbird, Yahoo
- Folds
- 01 02
Good at- Cheap paid plans per person
- Team plans that connect to Google Workspace or Microsoft 365
Not for- A free signature without its branding
mysignature.io/pricing, read 24 September 2026. Costs are Teams Standard, billed yearly; whether Standard pushes signatures automatically, as Engage does, was not verified.
- 5ExclaimerPer seatEvery message signed on the server, from $0.90 per user with a ten-user minimum.$0.90 to $1.75 per user a month, billed yearly, 10-user minimum
Full profileClose profile
A cloud signature platform that adds signatures as mail passes through Exclaimer's servers, built for IT and marketing teams.
- Works with
- Microsoft 365, Exchange, Google Workspace
- Folds
- 02 03 04 05 07
Good at- Signs every message routed through it, whatever sent it, on Microsoft 365 and Google Workspace
- Banner campaigns, click analytics and central governance
Not forSignatoro vs Exclaimer →- Companies under ten people, who pay the ten-user minimum
- An API an agent can call for a signature; its API is for partners provisioning tenants
exclaimer.com/pricing, read 18 September 2026 (costs are Starter); its Google Workspace support article and cloudapi.exclaimer.com, read 24 September 2026.
Mail your AI sends, signed like yours
- Programmable
- Affordable
- Consistent
Automation tools such as n8n and Make leave the Gmail signature off, so mail an agent sends needs a signature it can fetch or a server that adds one. Signatoro gives agents and CRMs an API that returns the sender's saved signature, with no admin, free for 50 requests a month, and one flat price for a company. Server-side tools sign whatever passes through them, priced per user with a ten-user minimum: Exclaimer on Google Workspace and Microsoft 365, CodeTwo on Microsoft 365; Google Workspace's own footer adds one plain-text footer.
What goes wrong
“I have a signature set on my gmail account, but it is not used when sending emails with the gmail node.”
“So every email sent from Twenty goes out unsigned, which is a problem for sales/support teams who rely on their work signature”
“emails sent by AI agents/scripts look different from emails sent via Gmail UI, which can appear unprofessional or inconsistent.”
- Each tool keeps its own copy of the signature, and they drift apart
The picks
Ranked for this fold only- 1SignatoroFlatAn API returns the sender's saved signature for the agent to append: no admin, free for 50 requests a month, one flat price for a company.Free, or $9 / $19 / $49 a month, plus $1.50 per extra member
Full profileClose profile
An email signature generator that is free for one person, with a flat monthly price by team size for a company of up to 50.
- Works with
- Gmail, Outlook, Apple Mail, Zoho Mail
- Folds
- 01 02 03 04 05 06
Good at- One flat price for the company's size, add members as you grow
- One logo, layout, color, font, review badge and booking button that every signature follows
- Change it once and everyone gets the new signature by email
- No "Get my signature" link, for anyone
- Invite by email; people keep their own name, title and photo
- PNG export and unlimited API requests, for everyone
- A compliance footnote on every signature, from the Up to 15 plan
- Footnote templates for the US, UK, EU and Canada, from the Up to 15 plan
- A history of every footnote change, from the Up to 50 plan
- Signatures keep working after the company stops paying
Not for- Stamping signatures on the mail server; each person pastes once, or installs in one click in Zoho Mail
- Banner campaigns or click analytics
Signatoro's own billing configuration and pricing page.
- 2ExclaimerPer seatSigns everything routed through its cloud on Microsoft 365 and Google Workspace, whatever sent it.$0.90 to $1.75 per user a month, billed yearly, 10-user minimum
Full profileClose profile
A cloud signature platform that adds signatures as mail passes through Exclaimer's servers, built for IT and marketing teams.
- Works with
- Microsoft 365, Exchange, Google Workspace
- Folds
- 02 03 04 05 07
Good at- Signs every message routed through it, whatever sent it, on Microsoft 365 and Google Workspace
- Banner campaigns, click analytics and central governance
Not forSignatoro vs Exclaimer →- Companies under ten people, who pay the ten-user minimum
- An API an agent can call for a signature; its API is for partners provisioning tenants
exclaimer.com/pricing, read 18 September 2026 (costs are Starter); its Google Workspace support article and cloudapi.exclaimer.com, read 24 September 2026.
- 3CodeTwoPer seatSigns everything routed through its Azure relay, on Microsoft 365 only.$1.22 per user a month, billed yearly, 10-license minimum
Full profileClose profile
A Microsoft 365 signature platform that signs mail through a relay hosted on Azure, an Outlook add-in, or both.
- Works with
- Microsoft 365
- Folds
- 03 04 07
Good at- Signs every message routed through its relay, whatever sent it
- Signatures synced from Entra ID
- Campaigns with click tracking and satisfaction surveys
Not forSignatoro vs CodeTwo →- Gmail or Google Workspace
- Teams under ten people
codetwo.com/email-signatures/ and its pricing calculator, read 20 and 24 September 2026: $1.22 per user a month billed yearly, ten-license minimum (costs are $1.22 times the licenses billed).
- 4Gmail and Google Workspace, built inFreeThe admin footer is free and added to outgoing mail, as one plain-text footer for everyone.Included with Gmail and Google Workspace
Full profileClose profile
Gmail's own signature setting for each person, plus an admin footer Google Workspace adds to outgoing mail.
- Works with
- Gmail, Google Workspace
- Folds
- 03 05
Good at- Free
- The admin footer is added to outgoing mail, and users cannot change or remove it
Not for- A designed, per-person footer: it is one footer per organizational unit, and its editor takes no HTML
Google's Gmail signature help and Workspace append-footer help, read 24 September 2026. Whether the footer covers mail sent through the Gmail API is not stated.
Outlook, with or without an IT team
- Reliable
- Central
- Affordable
Microsoft offers no public API for setting a person's Outlook signature, so central tools for Microsoft 365 either route mail through a server or deploy an add-in, and both need an admin. CodeTwo and Exclaimer lead there. A company without an admin can paste a signature into each Outlook once; Signatoro has guides for classic, new, Mac and mobile Outlook.
What goes wrong
“Why does the new outlook completely jack up signstures?? We use exclaimer as our signature manager”
“10-20 users regularly have their roaming signatures just vanish.”
- Roaming signatures in new Outlook vanish or fail to sync
The picks
Ranked for this fold only- 1CodeTwoPer seatBuilt for Microsoft 365: an Azure relay, an Outlook add-in, or both, synced from Entra ID.$1.22 per user a month, billed yearly, 10-license minimum
Full profileClose profile
A Microsoft 365 signature platform that signs mail through a relay hosted on Azure, an Outlook add-in, or both.
- Works with
- Microsoft 365
- Folds
- 03 04 07
Good at- Signs every message routed through its relay, whatever sent it
- Signatures synced from Entra ID
- Campaigns with click tracking and satisfaction surveys
Not forSignatoro vs CodeTwo →- Gmail or Google Workspace
- Teams under ten people
codetwo.com/email-signatures/ and its pricing calculator, read 20 and 24 September 2026: $1.22 per user a month billed yearly, ten-license minimum (costs are $1.22 times the licenses billed).
- 2ExclaimerPer seatServer-side signing with banners and analytics; ten-user minimum.$0.90 to $1.75 per user a month, billed yearly, 10-user minimum
Full profileClose profile
A cloud signature platform that adds signatures as mail passes through Exclaimer's servers, built for IT and marketing teams.
- Works with
- Microsoft 365, Exchange, Google Workspace
- Folds
- 02 03 04 05 07
Good at- Signs every message routed through it, whatever sent it, on Microsoft 365 and Google Workspace
- Banner campaigns, click analytics and central governance
Not forSignatoro vs Exclaimer →- Companies under ten people, who pay the ten-user minimum
- An API an agent can call for a signature; its API is for partners provisioning tenants
exclaimer.com/pricing, read 18 September 2026 (costs are Starter); its Google Workspace support article and cloudapi.exclaimer.com, read 24 September 2026.
- 3LetsignitPer seatNative Microsoft 365, pushed from the admin center with no action from users.$2 per user a month, billed yearly
Full profileClose profile
A signature manager deployed from the Microsoft 365 admin center, with no action needed from users.
- Works with
- Microsoft 365, Gmail, Apple Mail, Outlook Online, Exchange
- Folds
- 04 07
Good at- Native Microsoft 365, pushed from the admin center
Not for- Small teams: its minimum is not published
letsignit.com/pricing, read 24 September 2026. Costs are list price times people; the minimum seat count is not stated.
- 4SignatoroFlatFor a small team with no admin: each person pastes once, with a guide for every Outlook.Free, or $9 / $19 / $49 a month, plus $1.50 per extra member
Full profileClose profile
An email signature generator that is free for one person, with a flat monthly price by team size for a company of up to 50.
- Works with
- Gmail, Outlook, Apple Mail, Zoho Mail
- Folds
- 01 02 03 04 05 06
Good at- One flat price for the company's size, add members as you grow
- One logo, layout, color, font, review badge and booking button that every signature follows
- Change it once and everyone gets the new signature by email
- No "Get my signature" link, for anyone
- Invite by email; people keep their own name, title and photo
- PNG export and unlimited API requests, for everyone
- A compliance footnote on every signature, from the Up to 15 plan
- Footnote templates for the US, UK, EU and Canada, from the Up to 15 plan
- A history of every footnote change, from the Up to 50 plan
- Signatures keep working after the company stops paying
Not for- Stamping signatures on the mail server; each person pastes once, or installs in one click in Zoho Mail
- Banner campaigns or click analytics
Signatoro's own billing configuration and pricing page.
- 5NewoldstampPer seatA central push to Microsoft 365 and Exchange, about $1.82 per signature.About $1.82 per signature a month, billed yearly
Full profileClose profile
A centrally managed signature platform billed per signature, with banner campaigns and analytics built in.
- Works with
- Google Workspace, Microsoft 365, Exchange
- Folds
- 02 04 05
Good at- A central dashboard that pushes to Google Workspace, Microsoft 365 and Exchange
- Banner campaigns and click analytics
Not forSignatoro vs Newoldstamp →- Signatures that keep working after the subscription ends; its FAQ says they stop
newoldstamp.com/pricing, read 20 September 2026 (five signatures, $109 a year) and 24 September 2026 (ten, $219 a year; thirty, $479 a year).
Gmail, where everyone edits their own
- Consistent
- Central
- Affordable
Gmail keeps one signature per person that each person can edit, and a Google Workspace admin can add one plain-text footer to outgoing mail. For designed, per-person signatures run centrally, Exclaimer stamps them in transit and WiseStamp syncs them from Google Directory. Signatoro needs no admin and costs one flat price, and each person pastes once.
What goes wrong
“I have searched, and it seems the built in method is janky and unreliable.”
“Better yet, is there a way for me to set all the user email signatures from the Admin panel?”
- Anyone can edit their own signature, and the brand drifts
- The admin footer takes no HTML and is the same for everyone
The picks
Ranked for this fold only- 1ExclaimerPer seatServer-side on Workspace, whatever mail app sent the message; ten-user minimum.$0.90 to $1.75 per user a month, billed yearly, 10-user minimum
Full profileClose profile
A cloud signature platform that adds signatures as mail passes through Exclaimer's servers, built for IT and marketing teams.
- Works with
- Microsoft 365, Exchange, Google Workspace
- Folds
- 02 03 04 05 07
Good at- Signs every message routed through it, whatever sent it, on Microsoft 365 and Google Workspace
- Banner campaigns, click analytics and central governance
Not forSignatoro vs Exclaimer →- Companies under ten people, who pay the ten-user minimum
- An API an agent can call for a signature; its API is for partners provisioning tenants
exclaimer.com/pricing, read 18 September 2026 (costs are Starter); its Google Workspace support article and cloudapi.exclaimer.com, read 24 September 2026.
- 2WiseStampPer seatSyncs from Google Directory and installs signatures across the company, for a base fee plus $1 per employee.$19 a month plus $1 per employee, billed yearly
Full profileClose profile
A signature platform that syncs from a company's identity provider and signs through an add-in, a server-side mode, or both.
- Works with
- Google Workspace, Microsoft 365, Apple Mail, Zoho Mail
- Folds
- 02 05 06 07
Good at- Central management that also reaches Zoho Mail and Apple Mail
- Signatures provisioned from Entra ID, Google Directory or SCIM
Not forSignatoro vs WiseStamp →- A base price that already covers the first few people
- A free plan; its pricing page shows none
wisestamp.com/pricing, read 20 September 2026 (costs are Basic); its Zoho Mail and Apple Mail support articles, read 24 September 2026.
- 3SignatoroFlatNo Workspace admin needed and one flat price; each person pastes into Gmail once.Free, or $9 / $19 / $49 a month, plus $1.50 per extra member
Full profileClose profile
An email signature generator that is free for one person, with a flat monthly price by team size for a company of up to 50.
- Works with
- Gmail, Outlook, Apple Mail, Zoho Mail
- Folds
- 01 02 03 04 05 06
Good at- One flat price for the company's size, add members as you grow
- One logo, layout, color, font, review badge and booking button that every signature follows
- Change it once and everyone gets the new signature by email
- No "Get my signature" link, for anyone
- Invite by email; people keep their own name, title and photo
- PNG export and unlimited API requests, for everyone
- A compliance footnote on every signature, from the Up to 15 plan
- Footnote templates for the US, UK, EU and Canada, from the Up to 15 plan
- A history of every footnote change, from the Up to 50 plan
- Signatures keep working after the company stops paying
Not for- Stamping signatures on the mail server; each person pastes once, or installs in one click in Zoho Mail
- Banner campaigns or click analytics
Signatoro's own billing configuration and pricing page.
- 4NewoldstampPer seatA central push to Google Workspace from its dashboard, about $1.82 per signature.About $1.82 per signature a month, billed yearly
Full profileClose profile
A centrally managed signature platform billed per signature, with banner campaigns and analytics built in.
- Works with
- Google Workspace, Microsoft 365, Exchange
- Folds
- 02 04 05
Good at- A central dashboard that pushes to Google Workspace, Microsoft 365 and Exchange
- Banner campaigns and click analytics
Not forSignatoro vs Newoldstamp →- Signatures that keep working after the subscription ends; its FAQ says they stop
newoldstamp.com/pricing, read 20 September 2026 (five signatures, $109 a year) and 24 September 2026 (ten, $219 a year; thirty, $479 a year).
- 5Gmail and Google Workspace, built inFreeFree: a signature per person, plus one admin footer on outgoing mail.Included with Gmail and Google Workspace
Full profileClose profile
Gmail's own signature setting for each person, plus an admin footer Google Workspace adds to outgoing mail.
- Works with
- Gmail, Google Workspace
- Folds
- 03 05
Good at- Free
- The admin footer is added to outgoing mail, and users cannot change or remove it
Not for- A designed, per-person footer: it is one footer per organizational unit, and its editor takes no HTML
Google's Gmail signature help and Workspace append-footer help, read 24 September 2026. Whether the footer covers mail sent through the Gmail API is not stated.
Zoho Mail, which most tools skip
- Native
- Compatible
- Affordable
Zoho Mail's own admin console is the strongest option for Zoho: an organization-wide signature template with per-person fields that users cannot overwrite. WiseStamp manages Zoho Mail signatures centrally through an integration the admin turns on. Signatoro puts a person's signature into their Zoho Mail in one click and keeps it updated, and has the same flat company price.
What goes wrong
“my signature doing funny things such as the logo image getting blown up really large or showing up as an attachment”
“once I update my signature and use it in mail i loose this format”
- Guides and add-ins that stop at Gmail and Outlook
The picks
Ranked for this fold only- 1Zoho Mail, built inFreeAn organization-wide template with per-person fields, in Zoho Mail's admin console.In Zoho Mail's admin console
Full profileClose profile
Zoho Mail's admin console: an organization-wide signature template with per-person fields, and a domain footer.
- Works with
- Zoho Mail
- Folds
- 06
Good at- An organization-wide template with per-person placeholders that users cannot overwrite
- A domain footer added even to mail sent from other clients through Zoho
Not for- Designed HTML signatures in other mail apps
Zoho Mail's signature help and admin console help (organization settings, email disclaimer), read 24 September 2026. Which Zoho Mail plans include them was not verified.
- 2WiseStampPer seatA Zoho Mail integration the admin turns on; people insert the signature as they write.$19 a month plus $1 per employee, billed yearly
Full profileClose profile
A signature platform that syncs from a company's identity provider and signs through an add-in, a server-side mode, or both.
- Works with
- Google Workspace, Microsoft 365, Apple Mail, Zoho Mail
- Folds
- 02 05 06 07
Good at- Central management that also reaches Zoho Mail and Apple Mail
- Signatures provisioned from Entra ID, Google Directory or SCIM
Not forSignatoro vs WiseStamp →- A base price that already covers the first few people
- A free plan; its pricing page shows none
wisestamp.com/pricing, read 20 September 2026 (costs are Basic); its Zoho Mail and Apple Mail support articles, read 24 September 2026.
- 3SignatoroFlatOne-click install into your own Zoho Mail that keeps itself updated, and one flat price.Free, or $9 / $19 / $49 a month, plus $1.50 per extra member
Full profileClose profile
An email signature generator that is free for one person, with a flat monthly price by team size for a company of up to 50.
- Works with
- Gmail, Outlook, Apple Mail, Zoho Mail
- Folds
- 01 02 03 04 05 06
Good at- One flat price for the company's size, add members as you grow
- One logo, layout, color, font, review badge and booking button that every signature follows
- Change it once and everyone gets the new signature by email
- No "Get my signature" link, for anyone
- Invite by email; people keep their own name, title and photo
- PNG export and unlimited API requests, for everyone
- A compliance footnote on every signature, from the Up to 15 plan
- Footnote templates for the US, UK, EU and Canada, from the Up to 15 plan
- A history of every footnote change, from the Up to 50 plan
- Signatures keep working after the company stops paying
Not for- Stamping signatures on the mail server; each person pastes once, or installs in one click in Zoho Mail
- Banner campaigns or click analytics
Signatoro's own billing configuration and pricing page.
Governed centrally, stamped on the server
- Governed
- Automated
- Measurable
A company with an IT team and hundreds of people needs signatures governed centrally: synced from the directory, added on the server whatever the mail app, with banners and analytics. Exclaimer and CodeTwo stamp signatures on the server, Letsignit deploys from the Microsoft 365 admin center, and WiseStamp adds server-side signing to directory sync on its Platform tier. Signatoro is built for companies of up to 50 and is left out of this fold.
What goes wrong
“Even the report I received still didn't list the 57 users for which we were billed.”
“There's an 8% annual increase, yet it's not reflected on their site (yet.)”
- Per-user bills that are hard to reconcile with headcount
- Signatures that must follow the directory without anyone pasting
The picks
Ranked for this fold only- 1ExclaimerPer seatServer-side on Microsoft 365 and Google Workspace, with governance, banners and analytics.$0.90 to $1.75 per user a month, billed yearly, 10-user minimum
Full profileClose profile
A cloud signature platform that adds signatures as mail passes through Exclaimer's servers, built for IT and marketing teams.
- Works with
- Microsoft 365, Exchange, Google Workspace
- Folds
- 02 03 04 05 07
Good at- Signs every message routed through it, whatever sent it, on Microsoft 365 and Google Workspace
- Banner campaigns, click analytics and central governance
Not forSignatoro vs Exclaimer →- Companies under ten people, who pay the ten-user minimum
- An API an agent can call for a signature; its API is for partners provisioning tenants
exclaimer.com/pricing, read 18 September 2026 (costs are Starter); its Google Workspace support article and cloudapi.exclaimer.com, read 24 September 2026.
- 2CodeTwoPer seatServer-side on Microsoft 365 through its Azure relay, synced from Entra ID, with campaigns and surveys.$1.22 per user a month, billed yearly, 10-license minimum
Full profileClose profile
A Microsoft 365 signature platform that signs mail through a relay hosted on Azure, an Outlook add-in, or both.
- Works with
- Microsoft 365
- Folds
- 03 04 07
Good at- Signs every message routed through its relay, whatever sent it
- Signatures synced from Entra ID
- Campaigns with click tracking and satisfaction surveys
Not forSignatoro vs CodeTwo →- Gmail or Google Workspace
- Teams under ten people
codetwo.com/email-signatures/ and its pricing calculator, read 20 and 24 September 2026: $1.22 per user a month billed yearly, ten-license minimum (costs are $1.22 times the licenses billed).
- 3LetsignitPer seatDeployed from the Microsoft 365 admin center with no action from users.$2 per user a month, billed yearly
Full profileClose profile
A signature manager deployed from the Microsoft 365 admin center, with no action needed from users.
- Works with
- Microsoft 365, Gmail, Apple Mail, Outlook Online, Exchange
- Folds
- 04 07
Good at- Native Microsoft 365, pushed from the admin center
Not for- Small teams: its minimum is not published
letsignit.com/pricing, read 24 September 2026. Costs are list price times people; the minimum seat count is not stated.
- 4WiseStampPer seatDirectory sync from Entra ID, Google Directory or SCIM, with server-side signing on its Platform tier.$19 a month plus $1 per employee, billed yearly
Full profileClose profile
A signature platform that syncs from a company's identity provider and signs through an add-in, a server-side mode, or both.
- Works with
- Google Workspace, Microsoft 365, Apple Mail, Zoho Mail
- Folds
- 02 05 06 07
Good at- Central management that also reaches Zoho Mail and Apple Mail
- Signatures provisioned from Entra ID, Google Directory or SCIM
Not forSignatoro vs WiseStamp →- A base price that already covers the first few people
- A free plan; its pricing page shows none
wisestamp.com/pricing, read 20 September 2026 (costs are Basic); its Zoho Mail and Apple Mail support articles, read 24 September 2026.
Every tool, flat on the table
Monthly cost, rates as of 18-24 September 2026- SignatoroFlat5 people$910 people$16.5030 people$41.50
- HubSpot email signature generatorFree5 people$010 people$030 people$0
- MySignaturePer seat5 people$1210 people$2030 people$54
- WiseStampPer seat5 people$2410 people$2930 people$49
- NewoldstampPer seat5 people$9.0810 people$18.2530 people$39.92
- ExclaimerPer seat5 people$910 people$930 people$27
- CodeTwoPer seat5 people$12.2010 people$12.2030 people$36.60
- Gmail and Google Workspace, built inFree5 peopleIncluded10 peopleIncluded30 peopleIncluded
- LetsignitPer seat5 people$1010 people$2030 people$60
- Zoho Mail, built inFree5 peopleIncluded10 peopleIncluded30 peopleIncluded
Folds: 01 Individuals · 02 Small companies · 03 Sending with agents · 04 Microsoft users · 05 Gmail users · 06 Zoho users · 07 Enterprise. "-" means the vendor does not publish a price at that size.
Signatoro compared, one on one
All comparisons →Methodology
Each fold starts from what that group of people values, stated as three criteria, and its picks are ranked against those criteria, so an affordable tool can rank above a fuller one and Signatoro is left out where it does not fit. Every price and feature comes from the vendor's own pricing or help page, read on the date shown in each profile; Signatoro's prices come from its own billing. Complaints are quoted word for word from public threads and review sites, posted within the last two years, each linked to where it was said. Prices change; the date is the one that counts.
Frequently asked
What should a small company pay for email signatures?
Most email signature tools charge per person from the first one, often with a five- or ten-person minimum. Signatoro charges the company by its size: $9 up to 5 people, $19 up to 15 and $49 up to 50, plus $1.50 a month for each extra member.
Can an AI assistant add my email signature to the mail it sends?
Automation tools such as n8n and Make leave the Gmail signature off. An assistant or CRM that builds the email itself can fetch your saved signature from Signatoro by API, with no admin and one flat price. A tool that stamps signatures in transit signs whatever passes through it, priced per user: Exclaimer on Google Workspace and Microsoft 365, CodeTwo on Microsoft 365.
Is there a way to install a signature in Outlook without IT?
Yes: each person pastes it into Outlook's signature settings once. Microsoft offers no public API for setting another person's signature, so central tools for Microsoft 365 need an admin. Signatoro has guides for classic, new, Mac and mobile Outlook.
Which email signature tools work with Zoho Mail?
Zoho Mail's own admin console has an organization-wide signature template with per-person fields. WiseStamp manages Zoho Mail signatures centrally, and any email-safe HTML signature, Signatoro's included, pastes into Zoho Mail's signature settings.
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