Help & support.

Your first reaction

1. Share a supported link to ReactDuo or paste it on the home screen. You can also choose a source in Record App.
2. Keep Record reactions on and tap Start reaction. Read the explanation and approve the permissions you want to use.
3. Watch with the floating camera. Move it with one finger; pinch with two fingers to resize it.
4. Tap the camera window to reveal Stop. Wait for processing, then choose Watch or Share.

You choose the recipient in the messaging app. ReactDuo does not know which chat the original link came from.

Choose what to record

New installations default to My face only: your face and microphone, with the original link included when sharing if available.

In Settings → Video, choose a combined layout to include the source video when Android and the source app permit capture. Protected content may be black or silent.

Supported links include TikTok, YouTube videos and Shorts, Instagram posts and Reels, and SoundCloud. Record App also opens supported source apps. Not every video or audio stream can be captured.

Getting the sound right

Use headphones to keep the source audio out of your microphone. A speaker can be picked up along with your voice.

Optional separate source audio is controlled in Settings → Audio. It needs Android’s session capture consent and works only when the source permits it. If asked how you are listening, choose Headphones or Speakers accurately.

Separate playback audio may be omitted when the output is unclear, speakers are detected or the route changes. ReactDuo cannot remove source sound already recorded by the microphone.

Permissions & stopping

Camera and microphone permissions record your face and voice. Floating mode needs display-over-other-apps permission. Screen or separate playback audio capture requires a session-specific Android prompt.

Tap the camera window, then Stop. You can also use the recording notification when available. Link reactions have a three-minute limit; Record App sessions have a five-minute limit. Locking the screen stops recording.

During processing, Cancel creation discards the new reaction being created without deleting earlier reactions. Permissions can be revoked in Android settings.

Save, share or delete

Finished reactions stay in the local library. Saving to the gallery makes a separate copy. Share sends a video through an app you choose.

Deleting a library video does not remove copies in your gallery or messaging apps. Uninstalling or clearing Android app data removes the internal library. Export videos you want to keep first.

If the automatic start trim misses the right moment, use manual trimming and keep the original. Automatic trimming is an estimate.

Beta access & languages

The Google Play beta is being prepared. There is no public install link on this site yet.

The app supports English, Russian and Latvian. Open Settings → Language to choose a language or follow your device language.

Keep your original recording and contact support before reinstalling. Audio and capture from each source still need testing on real devices. Turn off Record reactions if you just want to open supported links without recording.