Retra
What it is
Retra is a free Android app for Game Boy Advance emulation, patching, and local game-save management. It uses a native mGBA libretro core, with a library that supports grid and list views, search, and filters for favorites, patches, homebrew, and unplayed games. The app imports .gba, .zip, .ups, .ips, and .bps files and can apply UPS, IPS, and BPS patches to compatible base files provided by the user. It intentionally rejects Nintendo DS .nds files. Save tools include local saves, automatic backups, a timeline, save health information, screenshots, and rewind; controls include touch, keyboard, and gamepad, with analog and dead-zone calibration. Retra says ROMs, saves, screenshots, and settings remain on the device, with optional Google account linking for identity personalization. A fresh install includes Retra Drift, an original 64 KiB homebrew mini-game. Commercial ROMs are not included, and users must supply compatible backups they are entitled to use. Listed APK releases are sideload test builds rather than Play Store releases. Cloud synchronization and cross-device conflict resolution are not release-ready systems.
For and against
For
- Library offers search and multiple filters
- Save tools include automatic backups and rewind
- Touch, keyboard, and gamepad controls are listed
- Game data and settings stay on-device
Against
- Targets Game Boy Advance and rejects .nds files
- Commercial ROMs are not included
- Listed APKs are sideload test builds
- Cloud sync is not release-ready
The verdict
Retra combines GBA emulation, patching, library organization, and local save tools in an Android app. Its stated limits include the GBA-only target, user-supplied commercial backups, and no release-ready cloud sync.
Who it suits
Retra suits Android users seeking GBA emulation alongside local save management and patch tools. Users should be prepared to supply their own compatible commercial game backups.
On the record
- Account linking
- The product overview describes a private local profile with optional Google account linking for identity personalization.github.com · read 3 Oct 2026
- Build status
- The maker's known-issues page says an Android SDK/NDK was unavailable in its environment, leaving Gradle and Compose APK compilation unverified there.github.com · read 2 Oct 2026
- Built-in game
- A fresh install imports Retra Drift, an original 64 KiB GBA homebrew mini-game.github.com · read 2 Oct 2026
- Cloud sync
- The project says cloud synchronization and cross-device conflict resolution are not release-ready, and recommends local backup/export.github.com · read 3 Oct 2026
- Commercial ROMs
- Retra says it does not include commercial ROMs and that users must provide compatible commercial game backups themselves.github.com · read 2 Oct 2026
- Controls
- Retra supports touch, keyboard or gamepad input, per-game launch profiles, and analog/dead-zone calibration.github.com · read 3 Oct 2026
- Developer
- The repository identifies Prashant Chataut as Retra's developer.github.com · read 3 Oct 2026
- Distribution
- The listed Android APK releases are described as personal or open-source sideload test builds, not Play Store releases.github.com · read 3 Oct 2026
- Emulation
- Retra uses a native mGBA libretro core for Game Boy Advance emulation.github.com · read 3 Oct 2026
- Format limit
- Retra targets Game Boy Advance and intentionally rejects Nintendo DS .nds files.github.com · read 3 Oct 2026
- Game library
- The library supports grid and list views, search, and filters for continue, favorites, patches, homebrew, and unplayed games.github.com · read 2 Oct 2026
- Game requirement
- Commercial games are not included and users must provide compatible game backups they are entitled to use.github.com · read 3 Oct 2026
- Homebrew
- The app includes Retra Drift, an original 64 KiB GBA homebrew mini-game, and a creator-first Homebrew Hub.github.com · read 3 Oct 2026
- Imports and patches
- Retra lists support for importing .gba, .zip, .ups, .ips, and .bps files, and rejects Nintendo DS .nds files.github.com · read 2 Oct 2026
- Library
- Its library supports artwork-oriented grid and list views, search, and filters for favorites, patches, homebrew, and unplayed games.github.com · read 3 Oct 2026
- Local privacy
- The product overview says ROMs, battery saves, save states, screenshots, and settings stay on the device.github.com · read 3 Oct 2026
- Patch support
- It supports UPS, IPS, and BPS patches applied to user-provided compatible base files.github.com · read 3 Oct 2026
- Privacy
- The product overview says ROMs, battery saves, save states, screenshots, and settings stay local on the device.github.com · read 2 Oct 2026
