RingMeter
Support
Get help
Email nz.jiangzq@gmail.com with your device model, iOS version and what you were measuring. A photo of the screen is optional; do not send someone else's personal details without permission.
Improve a measurement
Recalibrate using the correct card or coin, check display zoom, and match the ring's inner edge. For a printed PDF, print at actual size without page scaling.
Purchases
Use Restore Purchases for an existing purchase. Manage subscriptions in Apple Account settings; Apple handles billing and refunds.
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