Support

Open Settings → Restore purchases. Use the same Apple ID or Google account you bought Pro with. Restoring needs an internet connection for a moment; after that, Pro works offline.

You can try every Pro feature for 7 days. Nothing renews and nothing is charged automatically. When the trial ends, the app goes back to the free version unless you buy Pro.

Settings → Units: metric or imperial for distance, speed, temperature and pressure. Each scope profile has its own adjustment unit (MRAD or MOA) and click value.

Settings → Backup → Export creates one file with all your profiles. Save it to Files, iCloud Drive, Google Drive or anywhere you like. On the new phone, open Settings → Backup → Import and pick that file. Restore your Pro purchase separately.

Yes. Everything is calculated on your phone. Only buying or restoring Pro needs a connection.

Zeroed uses a point-mass RK4 solver with standard G1/G7 drag tables. Results are only as good as your inputs: measure MV with a chronograph, use the bullet maker’s BC and enter real conditions. Then true the solution with real drop at distance.

Yes. The phone sensor gives station pressure, which is what the solver wants. If you enter pressure by hand, use station pressure, not the sea-level value from a weather report.