# Hammer (open-source notes app)

> Hammer is a free, open-source notes app for Android and iOS. A simple tool for building stories. It has 769 GitHub stars and is released under the MIT license, and you can install it from F-Droid, Google Play and the App Store.

Please join our Discord to report issues! Multi-platform This app is where ever you are. Your phone, tablet, desktop, laptop, this program can be installed and run, not simply a website-in-a-box, but instead using native client side technologies to provide the best experience possible. Offline first I was frustrated with most of the story writing software I was finding as they were using web technologies (aka: Web Page in a box) which always seems to run into problems while being used offline for long periods of time. Hammer is designed from the ground up to be entirely local, no internet connection required, ever. Transparent Data Your data is yours.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/Darkrock-Studios/hammer-editor |
| Platforms | Android, iOS, Desktop |
| Built with | Jetpack Compose |
| GitHub stars | 769 |
| License | MIT (open source) |
| F-Droid | https://f-droid.org/packages/com.darkrockstudios.apps.hammer.android/ (package com.darkrockstudios.apps.hammer.android) |
| F-Droid anti-features | none flagged |
| Google Play | https://play.google.com/store/apps/details?id=com.darkrockstudios.apps.hammer.android |
| App Store | https://apps.apple.com/app/id6770841038 |
| Website | https://hammer.ink |
| Official | no |
| Category | Notes & to-do |
| Latest release | v3.12.0 (Oct 5, 2026) |
| Last commit | Oct 6, 2026 |

F-Droid builds its apps from source and flags anti-features: https://f-droid.org/en/docs/Anti-Features/

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