ZeroStick fixes analog stick drift on your PlayStation controller.

Stick drift is when your character keeps moving even though you are not touching the stick. It happens as controllers age, and it makes games frustrating or unplayable. ZeroStick corrects it by recalibrating the controller itself, so the fix stays on the controller permanently.

IMPORTANT: THIS APP REQUIRES THE ZEROSTICK CALIBRATOR
This is a companion app for the ZeroStick Calibrator, a small USB device sold separately at zerostickgaming.com. The app cannot do anything without it. The Calibrator is what talks to your controller; the app is the screen you use to control it.

HOW IT WORKS
1. Plug your controller into the ZeroStick Calibrator
2. Plug the Calibrator into any USB power source
3. Open this app and tap Calibrator
4. The app connects to the device over its own local Wi-Fi network
5. Run a centre calibration, then a range calibration
6. Save - the calibration is written to your controller and stays there

WHAT YOU CAN DO
- Calibrate stick centre, which is the main fix for drift
- Calibrate stick range for accurate full-travel input
- Fine-tune the centre point manually with the D-pad
- Watch both sticks live on screen while you adjust
- Check stick circularity to spot a worn or failing stick
- Save permanently to the controller, or reboot the device to start over

PRIVACY
This app collects nothing. No accounts, no analytics, no ads, no tracking. It never sends any data to us or to anyone else. It communicates only with the ZeroStick device sitting next to you, over a local network with no internet connection.

Your phone will ask for location permission. This is required by Android in order to join the Calibrator's Wi-Fi network - the app never reads, stores or transmits your location.

SUPPORT
Email caleb@zerostickgaming.com, or text 323-680-4706 (text messages only).