Help & Support
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[loading...]FAQ
How do I start measuring?
Place your iPhone on the turntable and tap START. The app will automatically detect the rotation and display the RPM.
Which iPhone models are supported?
iOS 16.2 or later is required. iPhone 12 or later is recommended for MagSafe mounting.
How accurate is the measurement?
Measurement accuracy depends on your iPhone's performance. Results may be affected by iPhone model, iOS version, table levelness, and placement position on the table.
How do I cancel my subscription?
Go to iPhone Settings → Apple ID → Subscriptions to cancel. Please cancel at least 24 hours before the next renewal date. You can also manage your subscription from the app menu.
How do I restore my purchase?
Tap "Restore Purchase" from the app menu.
Will my data be lost after an update?
No, updating the app will not delete your data. However, uninstalling the app will delete all data. We recommend regularly backing up important data as a CSV file.
Can I back up my data?
Yes. You can export your history as a CSV file from the history screen. You can also import the CSV file to another iPhone, making it easy to share welding conditions.