# Custom RR (open-source app)

> Custom RR is a free, open-source app for Android and iOS. Custom ROMs, recoveries & Treble GSIs for your Android, all in one catalog. It has 136 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid and Google Play.

Custom RR is a free, open-source companion app for the Android modding scene. It puts everything in one place: which custom ROMs and recoveries officially support your device, what Treble GSIs you can flash, and where to download them. No more bouncing between the LineageOS wiki, three Telegram channels, a SourceForge folder, and fourteen browser tabs. Features: 18 actively-maintained ROMs (LineageOS, crDroid, PixelOS, Project Elixir, Evolution X, DerpFest, UN1CA, BlissROMs, /e/, GrapheneOS, CalyxOS, DivestOS, RisingOS Revived, VoltageOS, and more), each with description, features, screenshots, and a one-tap link to the official download page.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/monsiu/Custom-RR |
| Platforms | Android, iOS |
| Built with | Flutter |
| GitHub stars | 136 |
| License | GPL-3.0-only (open source) |
| F-Droid | https://f-droid.org/packages/io.github.monsiu.custom_rr/ (package io.github.monsiu.custom_rr) |
| F-Droid anti-features | Relies on a non-free network service |
| Google Play | https://play.google.com/store/apps/details?id=io.github.monsiu.custom_rr |
| App Store | not linked |
| Website | none listed |
| Official | no |
| Category | Other |
| Latest release | v1.3.6 (Jul 30, 2026) |
| Last commit | Oct 7, 2026 |

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

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