Is there a good app for sync notes across devices?
Prime Gap: 33 apps already serve this, and 177 data points mined from real user reviews across 4 sources show where they fall short. Heavily used and done badly — the most disruptable kind of gap.
Data refreshed July 20, 2026 · scores recompute weekly as new reviews are mined, so re-check before you build.
What users complain about
The most common complaints behind apps that try to sync notes across devices, mined and clustered from real reviews:
| Complaint area | Type | Mentions | What a user said |
|---|---|---|---|
| cross-device sync | missing-feature | 5 | que se pueda tener la Opción de Sincronizar entre equipos las notas |
| note sync reliability | reliability | 4 | it's been stuck can't sync for 2 months now same thing syncing then error |
| no password recovery for locked notes | missing-feature | 3 | i have set passwords on some of my most important notes but now i cant remember! And there is jo other way for ne to open it |
| note sharing | missing-feature | 2 | no permite compartir notas |
| notes not migrated from previous device | reliability | 2 | no jalo mis notas del dispositivo anterior, eso debería de mejorar |
| cloud backup replaces and trashes notes | reliability | 2 | it replaces the notes and trashes the old ones |
| PC sync | missing-feature | 2 | Mir fehlt eigentlich nur eine Möglichkeit zur Synchronisation mit dem PC |
| syncing between devices fails | reliability | 2 | the syncing between devices fails |
| hard to sync notes across platforms | ux | 1 | they’ve made it so difficult to just want to take some good note and sync them to use across platforms |
| notes never sync across devices, lost access | reliability | 1 | elas nunca foram sincroniza das e nunca consegui abrir elas em outro dispositivo...perdi acesso a anotações importantes |
| cross-device notebook sync | missing-feature | 1 | Only missing thing is the notebook sync feature between same profile on multiple devices |
| sync fails to restore notes on new device | reliability | 1 | signed into the app again with syncing on, it didn't work... My notes never came back |
Apps that already serve this
| App | Rating | Ratings | Price |
|---|---|---|---|
| Möbius Sync Pro | 4.1 | 26 | $4.99 |
| Microsoft OneNote | 4.7 | 1,053,048 | Free |
| Notes+ for Watch | 0.0 | 0 | $0.99 |
| gtsync: Sync Tasks & Reminders | 5.0 | 1 | $6.99 |
| SideNotes Mobile | 4.2 | 28 | $9.99 |
| FSNotes | 4.7 | 86 | $4.99 |
| AudioNote™ | 4.2 | 117 | $12.99 |
| Plaud Note | 0.0 | 0 | $2.99 |
Should you build it?
Heavily used and done badly — the most disruptable kind of gap. Opportunity here scores 99 out of 100 — a function of demand, how crowded the field is, and how badly the existing apps perform. Use the live map to compare it against adjacent tasks.
Who has tried building this
7 attempts, all active and led by a 1k-star project — a live, healthy space with sustained builder interest.
| Project | Status | Stars | Stack |
|---|---|---|---|
| stravo1/obsidian-gdrive-sync | active | 1,014 | TypeScript |
| gitalexcampos/highlightsync.koplugin | active | 204 | Lua |
| dani84bs/AnnotationSync.koplugin | active | 110 | Lua |
| proflead/obsidian-sync | active | 97 | |
| memrynote/memry | active | 30 | TypeScript |
| rikodot/kardi_notes_app | active | 28 | Dart |
| dhanushl0l/clippy | active | 13 | Rust |
Open-source projects that attempted this task — active ones show today's bar; abandoned ones are a signal to validate why earlier attempts died.
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