Secure offline notes with AES-256 encryption and encrypted file attachments.
About this app
NoteSR is a privacy-first, offline note app that keeps your data on your device.
Create text notes, attach files, and open attachments directly in the app, all protected with AES-256 encryption. No account, no cloud sync, and no tracking.
• Encrypted local storage for notes and attachments
• Fully offline usage (no internet required)
• Built-in viewer for common file types
• Encrypted export/import for backup and restore
• Simple, minimal interface focused on privacy
NoteSR is designed for people who want secure personal notes, journals, and sensitive files without giving up control of their data.
Licensed under MIT, by zHd4.
What's New in v5.5.0
Imported from the F-Droid repository index.
- Improvements:
- • Improved notes and files navigation
- • Added warning dialog for unsaved notes
- • Added markdown support for open note activity
- • Some internal/intermediate improvements
Version history
Jul 10, 2026 · 35.7 MB · Android API 29–36 · code 62
Imported from the F-Droid repository index.
- Improvements:
- • Improved notes and files navigation
- • Added warning dialog for unsaved notes
- • Added markdown support for open note activity
- • Some internal/intermediate improvements
SHA-256 9d9fe8688f0070d68703fb2c2862d8abd0b7b8662a45a84bd972eb8b7f1402ee
May 11, 2026 · 35.4 MB · Android API 29–36 · code 61
Imported from the F-Droid repository index.
- Improvements:
- • Enhanced data safety with a new transactional system that prevents data loss or corruption if the app is closed or crashes during important tasks.
- • Improved file handling by adopting the standard Android system file picker for all backup and import operations.
- • Reduced app requirements by removing unnecessary network-related permissions.
- • Significant boost in overall app stability through a complete overhaul of how background services are managed.
- Bug Fixes:
SHA-256 9ee2e116a038408ce567b74cef0346e78d30ba3aab51aee3657de9fe31ea62c1
Apr 19, 2026 · 35.4 MB · Android API 29–36 · code 60
Imported from the F-Droid repository index.
- Improvements:
- • Improved the reliability of the secure file erasure feature, especially for large files and complex folder structures.
- • Optimized background processes like data import, export, and migration for better stability.
- • Internal optimizations to improve overall app performance and stability.
- Bug Fixes:
- • Fixed a crash that occurred when returning to the app after it was closed by the system in the background to save memory.
SHA-256 3d3afadebd743d1b6fb9aaabcc5ec6307c72a7cd88bea20ef5ca6a9427a5faab
Will it run on your device?
74%
- Targets newer Android builds, so legacy devices may be excluded.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be app.notesr is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 5.4.0 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall NoteSR - Encrypted Notes first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of NoteSR - Encrypted Notes, and a listing is removed when the evidence for it stops holding up.
Get NoteSR - Encrypted Notes
Every source we list for app.notesr is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
9d9fe8688f0070d68703fb2c2862d8abd0b7b8662a45a84bd972eb8b7f1402ee
Signing certificate
34ad32410ddcb2d13876577fe156e7cd4a240c089b5ae9a2a051cd151dcede58
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.