SignFast

Sign any PDF with a cryptographic signature. Offline, on-device, zero tracking.

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What it is

SignFast is the fastest way to sign a PDF on iOS. Open a file, sketch or type your signature, drop it on the page, export. No login walls, no accounts, no uploads. Your documents and signing keys never leave your phone.

Pricing

• Free with daily limits
• $9.99 lifetime — buy once, yours forever
• $2.99 / year — annual access if you want to try first

Privacy

SignFast collects zero personal data. Read the full privacy policy.

Support

One developer answers all emails: mcintyregrissom@gmail.com — or visit the support page.