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SignBolt on Every Device

Sign documents from Windows, Mac, Android, iOS, or any browser. Same account, same features, everywhere.

Windows Desktop

Available now

Native Windows app with file picker, drag & drop, and system tray. Dark theme.

Native file pickerDrag & drop PDFsSystem trayKeyboard shortcutsAuto-update

Available on Pro plan ($8/mo) and above. Download link provided after subscription.

79 MB · Windows 10 or later

Available now

Works in any browser. No download required. Install as a PWA for app-like experience.

No install neededWorks on phone/tablet/desktopInstall as PWAAlways up to date

Tip: In Chrome, click the install icon in the address bar to add to your home screen

0 MB · Any modern browser

Coming Q2 2026 — join waitlist

Native Android app with file picker, camera signature capture, and push notifications. Coming Q2 2026.

Camera signature capturePush notificationsBiometric lockShare signed PDFs

Mobile apps coming Q2 2026. Sign up now and we'll notify you on launch day.

~25 MB · Android 10+

Coming Q2 2026 — join waitlist

Native iPhone and iPad app with Face ID, camera capture, and AirDrop sharing. Coming Q2 2026.

Face ID / Touch IDCamera signature captureAirDrop sharingWidgets

Mobile apps coming Q2 2026. In the meantime, the web app works great on Safari.

~30 MB · iOS 16+

Coming soon

Native Mac app. Requires macOS build environment — coming in a future release.

Native file pickerMenu bar iconKeyboard shortcutsTouch Bar support

Use the web app or install as a PWA from Chrome/Edge while the Mac app is in development.

~85 MB · macOS 12+

SignBolt works in any browser. No download, no install, no app store. Just sign.