Measurement help

Open the help icon next to any measurement site for landmarks and technique. Use the right side and mark the same location for every round.

Restore Pro

Open Settings, then Billing, and choose Restore purchases while signed into the app-store account that made the purchase.

Report a problem

Email the app version, device model, operating-system version, and the steps that led to the issue. Do not send sensitive body measurements unless needed.

Privacy question

Read the Privacy Policy or email us about analytics, research sharing, purchases, or deletion.

Common questions

Why can my estimate change between sessions?

Small changes in site location, fold direction, muscle tension, hydration, recent exercise, and caliper placement can affect a reading. Measure under similar conditions and focus on longer-term trends.

Is Caliper Cal a medical tool?

No. It provides general fitness estimates and does not diagnose, treat, cure, or prevent any medical condition.

Does deleting the app delete purchase records?

No. The app store and RevenueCat may retain transaction information needed to restore purchases, prevent fraud, and meet legal obligations.

Where is my history backed up?

Caliper Cal does not provide cloud backup for measurement history. Android backup and device transfer are disabled, and the iOS database is intended to be excluded from backup. Export is not currently available.