MailSign vs MailSignatures.io (2026): which should you pick?

Pick MailSign if

• Fits if you are one person who wants a tidy signature without paying
• Works for companies that want to talk to sales about a deployed signature

Look elsewhere if

• Skip it if you want a team price on the page, because none is published
• Tight if you use the free generator, since you copy the signature into Gmail or Outlook yourself
• Watch out: deployment, sync and audit logs are team features only
• Watch out: Outlook signatures need the MailSign add-in, and the Gmail route needs Google Workspace

Pick MailSignatures.io if

• Fits if you run Google Workspace for a team of 5 to 50
• Works for one person with a personal Gmail account who wants a signature synced

Look elsewhere if

• Skip it if you use Outlook or Microsoft 365, which the pages do not cover
• Watch out: prices shown are annual, and only Solo's $4 monthly rate is stated
• Tight if you want support, since priority support starts at Business, 6 to 20 users
• Watch out: Solo has no trial, only a free preview before you pay to sync

MailSign

• Team pricing is not published; companies contact the vendor and are set up by hand.
• The free generator produces a signature you paste in yourself; deployment, sync and audit logs are team features.
• Outlook signatures depend on the MailSign add-in being installed, and the Gmail path needs Google Workspace.

MailSignatures.io

• It is built for Gmail and Google Workspace only; the pages describe no Outlook or Microsoft 365 support.
• The prices shown are on annual billing; only the Solo plan's month-to-month price ($4) is stated in the FAQ.
• Priority support and setup guidance start at the Business plan.
• Invoicing, vendor onboarding and help with larger deployments are handled by contacting the vendor.

MailSign

Free signature generator

Anyone can build a signature from 10 layouts with their own logo, colors and links, then copy it into Gmail or Outlook.

Gmail deployment

After connecting Google Workspace, an admin edits the template and deploys it, and every mailbox gets the new signature.

Outlook add-in

Outlook users sign in with a Microsoft account and the add-in, listed on Microsoft AppSource, adds the right signature.

Locked fields and permissions

Admins choose which fields staff can edit, such as name or phone, while logo, layout and colors stay locked.

Directory sync

Titles, phone numbers and photos can be entered in MailSign or synced from Azure AD or SFTP, and new hires get a first signature from the company default.

Audit log

Team accounts include an audit log of changes.

MailSignatures.io

Direct Gmail sync

Signatures are written to each user's native Gmail settings via Google Workspace, with no browser extension and no change to email delivery.

Directory-fed details

Names, titles and photos are pulled from the Workspace directory, and seats stay in sync with the Workspace user list.

Three signature styles

Every Workspace plan includes all three signature styles, social links, brand color and logo, and shared company fields.

Multiple domains and aliases

Secondary domains each get their own branded design, kept in sync alongside the main domain.

Preview before applying

Admins review every signature before syncing, then apply it to all mailboxes in one flow.

Free generators

The site offers a free signature generator and templates that need no account.

MailSign

• Free$0

  Free signature generator for one person with 10 layouts, copied into Gmail or Outlook yourself.

• TeamsCustom

  Company templates and permissions, Gmail deployment, Outlook add-in, Azure AD or SFTP directory sync and audit logs. Set up through sales.

MailSignatures.io

• Solo$3

  per month for 1 Gmail account, billed annually ($4 monthly)

  One signature for a personal Gmail account with hosted logo and profile images; you design and preview it and pay when you sync.

• Starter$10

  per month for 1-5 users, billed annually

  Google Workspace sync, team management and standard support for very small teams. $120 billed annually.

• Business$20

  per month for 6-20 users, billed annually

  Everything in Starter plus priority support and setup guidance. $240 billed annually.

• Scale$41

  per month for 21-50 users, billed annually

  Priority support and onboarding help; $490 billed annually. Beyond 50 users it is $1 per user a month or $10 per user a year.

MailSign

No public discounts listed.

MailSignatures.io

• Annual discount

  Annual billing saves $12 to $98 a year

  The pricing page shows the yearly saving for each plan: $12 on Solo, $24 on Starter, $48 on Business and $98 on Scale.