# Robot36 (open-source photo and gallery app)

> Robot36 is a free, open-source photo and gallery app for Android. Decodes Slow Scan Television images from audio. It has 518 GitHub stars and is released under the 0BSD license, and you can install it from F-Droid.

Following SSTV modes are supported: Robot Modes: 36 & 72 PD Modes: 50, 90, 120, 160, 180, 240 & 290 Martin Modes: 1 & 2 Scottie Modes: 1, 2 & DX Wraase Mode: SC2-180 Old B/W or unsupported modes can be viewed in "Raw" mode. On detection of the calibration header of a supported mode, the resulting image will be automatically saved to the "Pictures" directory and can be seen in the Image gallery. With version 2, running the decoder in the background will not be supported anymore.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/xdsopl/robot36 |
| Platforms | Android |
| Built with | Java |
| GitHub stars | 518 |
| License | 0BSD (open source) |
| F-Droid | https://f-droid.org/packages/xdsopl.robot36/ (package xdsopl.robot36) |
| F-Droid anti-features | none flagged |
| Google Play | not linked |
| App Store | not linked |
| Website | https://sites.google.com/view/xdsopl/robot36 |
| Official | no |
| Category | Photos, gallery & camera |
| Latest release | v2.17 (Sep 15, 2026) |
| Last commit | Oct 3, 2026 |

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

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