A WiseStamp alternative you pay for once

Updated June 2026

WiseStamp is one of the oldest names in email signatures, and for managed company-wide deployments it earns its keep. But if you are one person who needs one good signature, you are being asked to rent something you could own. As of June 2026, WiseStamp’s cheapest plan — Pro+ — is listed at $9/month, and like all of its paid plans it is billed annually, so the real checkout price is $108 up front, every year.

OnceSig takes the opposite approach: a one-time payment of $9 (launch price; regularly $15) buys clean signature export forever. No subscription, no account, no email capture. The math below is the whole argument.

The subscription math

A signature is not a service. Once the HTML is pasted into Gmail or Outlook, it just sits there and works. Paying monthly for a static block of HTML only makes sense if someone is actively managing it for you — which, for a solo user, nobody is.

Even at OnceSig’s regular $15 price, three years of WiseStamp costs more than 20 times as much. And if you stop paying WiseStamp, your access to editing and the branding-free signature goes with it. An OnceSig license key keeps unlocking clean exports indefinitely. Full details are on the pricing page.

The free-tier difference

Both products let you build a signature without paying, with a similar catch on each side — but a different way out.

• WiseStamp, as of June 2026, no longer offers a permanent free plan; there is a 14-day trial of the paid product. Its separate free generator tool adds WiseStamp promotional branding to your signature, and removing it requires an annual paid plan.
• OnceSig’s free tier is the full editor — every template, every field, every export path. Exports carry a small “Made with OnceSig” credit line until a one-time license key removes it.

In both cases the free output advertises the tool. The difference is the exit: $9 once versus $108 a year.

What you actually get for $9

OnceSig is deliberately narrow: it generates signature HTML that survives real email clients, especially Outlook, which still renders HTML with Microsoft Word’s engine and breaks most hand-built signatures.

Every one of the 12 templates ships with:

• Table-based layout and inline styles only — no stylesheet to be stripped
• No <p> tags, which eliminates Outlook’s double-spacing bug
• mso-line-height-rule: exactly on every line-height, so Outlook respects your spacing
• Images with explicit width/height attributes and CSS dimensions, so logos stay sharp on high-DPI displays instead of scaling blurry
• Dark-mode-safe colors and output under Gmail’s 10,000-character signature limit

You copy the result as rich text and paste it into Gmail or Outlook settings, or download a .htm file for classic Outlook’s Signatures folder. Step-by-step instructions live in the Gmail guide and the classic Outlook guide, with guides for new Outlook, Outlook on the web, Apple Mail, and Thunderbird as well.

One more structural difference: OnceSig has no accounts and no server-side storage. Your signature data lives in your browser’s localStorage and never touches a server. WiseStamp, as a managed platform, necessarily stores your signature and profile data on its servers — that is a feature for IT departments and a non-feature for individuals.

When WiseStamp is the better choice

An honest comparison page should say this plainly: WiseStamp is genuinely better for some buyers.

• Managed company-wide signatures. If you need to push a consistent signature to 50 employees, update it centrally, and enforce it from an admin dashboard, that is exactly what WiseStamp’s team plans (from $19/month base plus per-seat pricing, as of June 2026) are built for. OnceSig has no central management — Pro stores up to 10 signatures, but a person installs each one.
• Banner campaigns. WiseStamp can rotate promotional banners across your team’s signatures and tie them to campaigns. OnceSig generates a static signature; if you want a new banner, you edit and re-paste.
• Directory and platform integrations. WiseStamp integrates with Google Workspace and Microsoft 365 for automated deployment. OnceSig’s install path is deliberately manual: copy, paste, done.

If those describe your situation, an ongoing subscription is buying ongoing work, and the price can be justified. If they don’t — if you are a freelancer, a job seeker, or a small business owner who needs one signature that renders correctly everywhere — you are the person the one-time model exists for.

Try the editor before paying anything

The OnceSig editor is free to use with no signup. Build your signature, preview it, and only buy a license key when you want the credit line removed. There is a 14-day money-back guarantee if it doesn’t work out.