Frez: Isometric Training

Frez (formerly ClimbHarder): Train Without Moving. Improve With Data.

Frez helps you train smarter with isometric workouts. Whether you’re a climber, athlete, Frez gives you real-time feedback and structured routines based on your performance.

Real-time Force Tracking

• Visualize your force output live through Bluetooth-connected crane scales. Know exactly how hard you’re pulling — and how long you can hold it.

Peak & Endurance Tests

• Measure your Maximum Voluntary Contraction (MVC) or hold a force over time. Frez records every detail, so you can track your gains and compare sessions.

Custom Routines

• Build and follow your own isometric training routines — with full control over reps, sets, rest time, and target force.

Offline Mode

• No signal in the gym? No problem. Frez works even when you’re offline.

Frez supports your strength journey — one pull at a time.

= Frez service access permissions

Frez uses minimal device permissions, and we'll explain why.

= [Optional] Bluetooth permissions

We need Bluetooth permissions to connect with force measurement devices.

Subscription Terms:

Payment will be charged to the credit card connected to your Apple account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current subscription period. Your account will be charged for renewal within 24 hours prior to the end of the current period, and the cost of the renewal will be identified. You may manage your subscription and turn off auto-renewal by going to your Account Settings after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Read more about our terms and conditions here:

Privacy Policy: https://frez.app/privacy

Terms of Service: https://frez.app/terms