CLUSTER NOTES-ACROSS-DEVICES · 15 ENTRIES · EARLIEST ENTRY 2017-11-21
Encrypted privacy notes apps
The cluster is privacy-focused note-taking apps that encrypt data, sync across devices, and often support handwriting or multimedia. Dated entries appear once in 2017, 2019, 2021, 2024, 2025, and 2026, showing a sparse spread across nine years with no clear shape. Traction leaders by activity signal are Joplin, woyz-notes-121, and Saber, each at 0 stars.
Entry timeline
ENTRY TIMELINE
Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.
Members by activity
Activity signals, not revenue.
Build origin · 1 ai-built · 3 hand-coded · 11 unlabelled
Operator · 2 hobby · 2 indie · 1 commercial · 7 open source · 3 unlabelled
Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 15 listed below. Unlabelled means nothing has decided yet — not that the answer is small.
- 01IdeaNote5★17 dayslivehobbyPrivacy-focused note-taking app for Windows that captures text, images, and voice, searches text inside images, and answers questions from an on-device knowledge base.
- 02Tuisku0★29 daysliveopen sourceMobile app that encrypts notes locally and offers simple note-taking with optional screenshot blocking for privacy.
- 03SiYuan0★21 daysliveopen sourcePrivacy-first knowledge management app for personal notes with backlinks and encrypted cloud sync.
- 04Saber0★1 molivehand-codedopen sourceNote-taking application designed for handwritten notes that syncs across devices, inverts ink colors for dark mode, and encrypts data for privacy.
- 05Joplin0★1 molivehand-codedcommercialPrivacy-focused note-taking app that encrypts multimedia notes, organizes them into notebooks and tags, and syncs across devices.
- 06locknote0★1 mo—hobbyOffline-first notes app that keeps private notes encrypted on the device and unlocks them with biometric authentication.
- 07woyz-notes-1210★1 mo—Notes app that stores each user's notes privately and syncs them across devices in real time.
- 08envelope-scribble-pad3★1 yrabandoned—ai-builtNote-taking app that protects user notes with privacy and security.
- 09Fast Notes - AI Notes Taking0★7 mostaleliveindieMobile app for local-first, privacy-focused note-taking with on-device encryption and AI-generated summaries for quick information retrieval.
- 10Jiyi0★1 moliveopen sourceCross-platform encrypted voice note app that records audio locally, attaches location, and helps users create a private audio diary.
- 11Justnote - Note Taking App0★8 mostaleliveindiePrivacy-focused mobile note-taking app that encrypts notes with user-controlled cryptographic keys and syncs them across devices.
- 12kardi notes | privacy matters0★1 yrabandonedliveopen sourceA cross-platform encrypted notes app that syncs user notes across devices with a focus on privacy.
- 13Turtl0★7 yrabandonedlivehand-codedopen sourceEncrypted app for organizing private notes, bookmarks, documents, and passwords with tagging and sharing.
- 14Saber0★unknownliveopen sourceHandwriting notes app that syncs across devices, inverts ink and images for dark mode, and encrypts stored notes.
- 15Wisdom - Note-Taking App0★11 mostaleliveMobile app for taking simple notes with full offline storage and on-device encryption for privacy-focused users.
Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.