We're here to help you get the most out of Sonobender, your gesture-controlled theremin app.
For any questions, feedback, or issues, please email us at:
We typically respond within 24-48 hours.
Point your device's camera at your hands. Move your right hand up and down to control pitch, and your left hand to control volume. The app uses machine learning to track your hand positions in real-time.
Make sure you have good lighting and your hands are clearly visible to the camera. The app works best with a plain background. Try holding your hands 1-2 feet away from the camera.
Tap the settings icon to access customization options. You can change the Aurora theme, adjust audio settings, and personalize the visual effects.
Coins can be used to unlock premium themes and remove ads temporarily. You can earn coins by watching rewarded videos or purchase them directly in the app.
Go to Settings within the app and look for the "Restore Purchases" option. This will restore any previously purchased items linked to your Apple ID.
Sonobender uses your camera exclusively for hand tracking to control the theremin. No video or images are recorded, stored, or transmitted. All processing happens locally on your device.
When you first open the app, you'll see a prompt asking for permission to track. Select "Ask App Not to Track" to disable personalized advertising. You can also change this later in your device's Settings → Privacy → Tracking.
We love hearing from our users! If you have ideas for new features or improvements, please send them to min4034415@gmail.com. Your feedback helps make Sonobender better for everyone.
Last updated: December 2025