GyroSidecar Support

Privacy Policy

GyroSidecar records your iPhone's gyroscope and accelerometer at 100 Hz while you film with a separate camera app on the same phone, and exports GCSV v1.3 sidecar files for gyro-based video stabilization tools.

Quick start

1. Open GyroSidecar and allow Motion & Fitness access.
2. Optionally enable Reference Audio (used later to align the motion log with your footage by waveform).
3. Tap Start Recording, then switch to your camera app and film. Logging continues in the background.
4. Stop the camera first, return to GyroSidecar, and tap Stop Recording.
5. In the Sessions tab, share the sync package or the individual GCSV file to your computer.
6. Load your footage and the sidecar into your stabilization tool.

FAQ

Why does the app use background audio?

Only when you enable Reference Audio: the app genuinely records a low-quality alignment track while you film. Nothing is ever played back, and with the toggle off no microphone access happens at all.

Why is Motion & Fitness permission required?

Recording the motion sensors is the app's entire purpose; without the permission there is nothing to record.

Where are my recordings?

Only on your iPhone, listed in the Sessions tab. Nothing is uploaded anywhere. Deleting a session (or the app) removes the data.

A recording was interrupted — is it lost?

No. GyroSidecar writes incrementally; after a crash or force-quit the Sessions tab offers one-tap recovery of everything logged so far.

What phone and iOS version do I need?

An iPhone running iOS 26.1 or later.

Contact

Email devmate.jp.ltd@gmail.com — include your iOS version and, if relevant, the session's Diagnostics readings.