Legal

Mettle Strength Terms of Use

Effective: September 24, 2026

Mettle Strength is provided by Steven Kuo. By downloading or using the app, you agree to Apple’s Standard Licensed Application End User License Agreement and the subscription information below. Contact support@joinmettle.app with questions about Mettle.

Mettle Pro subscription

Mettle’s training features require an active Mettle Pro subscription. The app offers an annual auto-renewable subscription through Apple’s in-app purchase system. Eligible new subscribers may receive a 14-day introductory free trial. The full annual price, trial eligibility, and terms shown in the app and Apple’s purchase sheet at the time you subscribe apply to your purchase. Unless canceled, the subscription renews at the then-applicable price after the trial and at the end of each billing period. You can manage or cancel it in your Apple Account subscription settings. Canceling stops future renewal; access continues for the remainder of the active entitlement period, as determined by Apple. Restore Purchases is available in the app. Apple handles billing and refund requests under its applicable policies.

Using the app

Mettle helps you organize and record strength workouts. You are responsible for choosing exercises and loads appropriate for you. Mettle does not provide medical advice or replace advice from a qualified professional. Stop an activity that causes pain or other concerning symptoms and seek appropriate advice.

Updates and availability

We may improve or change Mettle over time. Features require a compatible device and may depend on Apple subscription services. Training data stored locally on a device may be lost if the app or device is removed or reset without an available backup.

Privacy and contact

See our Privacy Policy for information about data handling. For app support, email support@joinmettle.app or visit Support.

This page points to Apple’s standard EULA and adds product and subscription information; it is not intended to replace the Standard EULA with a custom App Store license agreement.