OpenV2Docs
FAQStart Building

Preview on device

Run your OpenV2 app on a real iPhone or Android device.

Testing on a real device is the best way to validate touch interactions, performance, and layout on actual screen sizes.

Requirements

  • Expo Go installed on your phone (iOS App Store / Google Play)
  • A stable internet connection on both your computer and phone

Steps

  1. Open your project in the OpenV2 workbench
  2. Open the device preview or QR panel
  3. Scan the QR code with your phone camera (iOS) or Expo Go (Android)
  4. The app loads on your device — changes sync as you iterate

Troubleshooting

IssueSolution
QR code won't scanEnsure you're logged in and the project preview is running
App shows a blank screenWait for the bundle to finish, then refresh in Expo Go
Changes don't appearPull down to refresh in Expo Go or rescan the QR code

Limitations

  • Expo Go supports most Expo SDK APIs but not every native module
  • For store-ready builds with custom native code, use native builds (Native builds)