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
I’m using this to train primarily endurance for climbing. It’s so much better than the native Tindeq app. Well worth paying for.
Developer Response
Thanks so much, Jperled!We’re really happy to know you’ve found real value in Frez.It means a lot to us that it’s been worth it for your climbing endurance training.We’ll keep making it even better so you get the most out of every session.If you ever have ideas or feedback, reach us anytime at support@frez.app or on Instagram @frez.app 💪
Great app
Linco12345
Simple to use app for training
Developer Response
Thanks, Linco12345!Glad to hear you found the app simple to use - that’s exactly what we were aiming for.Hope it helps with your training! 💪
[New Features]
* Apple Health workout sync with Apple Watch companion support for live heart rate, rest countdowns, and remote controls.
* Target weights can now stay pinned to a specific grip assessment record for a steadier baseline.
[Improvements]
* Health detail cards now appear in session and routine logs, with cleaner heart rate zones and broader FrezWatch localization.
* Faster, clearer onboarding and sign-in recovery when the app needs you to continue or log in again.
[Bugfix]
* Fixed cases where startup, onboarding, or returning-user recovery could get stuck or show a blank loading screen.
Version 4.3.0
The developer, Donghyun Kim, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Contact Info
User Content
Identifiers
Diagnostics
Other Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Usage Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Donghyun Kim
Size
107.1 MB
Category
Health & Fitness
Compatibility
Requires iOS 14.0 or later.
iPhone Requires iOS 14.0 or later.
iPad Requires iPadOS 14.0 or later.
iPod touch Requires iOS 14.0 or later.
Mac Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
