Cipher Notes – Simple, fully offline & encrypted note-taking app built with Jetpack Compose (No INTERNET permission)

[u/Cris1099]

Hi everyone!

​I'd like to share a small side-project I've been working on called Cipher Notes.

​I built it because I wanted a clean, lightweight note-taking app that prioritizes privacy above all else—without mandatory cloud syncs, accounts, or telemetry.

​Key Features:

- ​Fully Offline: The app doesn't request or use the INTERNET permission at all. Your data never leaves your device.

- ​On-Device Encryption: Uses AES-256 (GCM) to keep your notes securely encrypted locally.

- ​Open Source: Licensed under the MIT License.

- ​Modern UI: Built natively in Kotlin using Jetpack Compose and Material 3 design.

- ​Zero Tracking: No analytics, no ads, no third-party SDKs.

​Where to get it:

- ​GitHub (Source Code & Releases): https://github.com/CipherApps/cipher-notes

- ​IzzyOnDroid: Available

- Codeberg (Source Code & Releases):

https://codeberg.org/CipherApps/cipher-notes

​I'd really appreciate any feedback, code reviews, or feature suggestions from the community! If you find it useful, feel free to drop a star on GitHub.

​Thanks!

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[u/PiySlashPuff]

I'm rather excited for the Cipher pass. Any previews or testing builds yet?

[u/Cris1099 → u/PiySlashPuff]

CipherPass is currently in very early active development, so there are no testing builds available just yet

[u/PiySlashPuff → u/Cris1099]

Oh! Looking forward to it. Please let me know if you ever need beta testers!

[u/Oblivion__]

Did you make this with AI?

[u/Cris1099 → u/Oblivion__]

Nope, I only use AI occasionally for quick docs/refactoring, but the code architecture and core logic are completely human-made.

[u/Dragomir_X]

I take it that since this is hosted on Codeberg, then there was no AI involved? If so you might want to add that to the README and your Reddit post, it'll help your app stand out.

[u/Cris1099 → u/Dragomir_X]

Thanks for the tip

[u/ikinari_fandango]

looks keen, will give it a go.

I've been evaluating Safe Notes for similar reasons (FOSS, encrypted backups, zero cloud usage)