Frez (formerly ClimbHarder)

Frez

In-app purchases

About this app

Frez: 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.

Ratings and reviews

I've been an active user for over a year. This is an excellent training tool at a much more reasonable price than its direct competitors. The developer is constantly updating and improving the UI and available tools. Final note, I had a billing issue recently (very minor) and the developer responded and rectified my issue almost immediately. Exceptional customer support, and clearly a devoted and active developer who listens to users and is constantly improving.

I hate that you have to sign in with Google account. Feels like you just want to have my data. I will not be using the app because of this.

So far it does the trick. The paid version is a little out of budget for people who don't earn US$ or similar which is my main complaint. Happy to be able to use the free tier and would consider paying a small amount for a few extra features. Edit: New version doesn't let you use target weight unless you upgrade to pro. Pretty unfortunate. Not sure the app is worth using anymore.

What’s new

[New Features]
* Choose whether to alternate hands and set the hand-switch preparation time when starting the standalone timer.

[Improvements]
* Bulk edit ratios are now shown as percentages for clearer workout setup.