Sempere icon
Sempere icon

Sempere

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Handwritten notes, post-quantum end-to-end encrypted with keys only your devices hold. No account, no server, no tracking. Sync or back up through iCloud Drive, any folder or WebDAV. Open source.

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  • New

Updated

  • Updated Nov 2026

Platforms

  • Online  Web viewer is fully static and read-only.
  • Mac
  • iPhone
  • iPad
  • Linux  CLI only, most features included except for Apple-specific voice and handwriting recognition.
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Backup & Sync, Security & Privacy

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Sempere was added to AlternativeTo by anthonytw on and this page was last updated .

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What is Sempere?

Sempere is a handwriting notes app for iPad, iPhone and Mac that keeps your notes yours.

YOUR NOTES, YOUR KEYS Every note is end-to-end encrypted with the open age format, with post-quantum protection. Each device keeps its own key in the Keychain and the Secure Enclave, and a recovery kit you keep lets you back in. There is no account and no server of ours: nobody else, not even the developer, can read what you write.

SYNC WHERE YOU CHOOSE Your vault lives on your device and works offline. Sync it both ways through iCloud Drive, any folder in Files, or your own WebDAV server, and back it up to a folder you pick. Edits from different devices merge instead of making conflict copies. A new device joins with six words or a QR code.

REAL INK, AND MORE Write and draw with Apple Pencil, a finger or a mouse: pens, pencil, marker, lasso, ruler, and an eraser for whole strokes or just pixels. Choose lined, grid, dotted or plain paper, in pages or one endless sheet. Add text boxes, photos, PDFs to annotate, videos and typeset equations.

FIND ANYTHING Handwriting is recognized on your device, so search finds the words you wrote and highlights them on the page. Notebooks, tags and favorites keep things in order.

VOICE NOTES Record audio as you write, then tap the ink to hear what was said at that moment. Transcripts are made on your device. Start a quick voice note from the Lock Screen.

YOURS TO KEEP A vault is a folder of standard age files: with your recovery key and free tools you can always decrypt it. Export notes as PDF, PNG or Markdown, import from Notability, and script everything with the open-source sempere command-line tool for Mac and Linux.

NO STRINGS No ads, no subscription, no tracking, no analytics. Sempere collects no data.

OPEN SOURCE Sempere is free software (GPL-3.0-or-later with an App Store exception). Code, guide and web viewer: sempere.anthonywertz.com

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