Comparison

Frez vs Boulder Rest

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Frez

This app offers isometric training routines with real-time force feedback. Track your performance, build custom workouts, and measure your strength gains. It works offline and connects to Bluetooth force measurement devices.

Highlights
  • Real-time force tracking
  • Peak and endurance tests
  • Customizable workout routines
  • Offline mode
  • Bluetooth device connectivity
  • Performance data visualization
Features
Read full description

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

About

Boulder Rest

Features
Read full description

Boulder Rest helps you rest between attempts when you board climb. When you're working a hard boulder — on a board, a spray wall, or your gym's hardest line — the rest between attempts is part of the training. Boulder Rest makes it effortless to rest at least as long as you planned, then reset with a single tap and get back on the wall. REST IN ONE TAP • Start a session, then tap Short or Long after each attempt — the timer counts up, so you always know you've rested enough. • Elapsed time and your target at a glance, with a ring that fills as you recover. CONTROL IT WITHOUT LEAVING YOUR BOARD APP • A Live Activity puts your rest time visible while using other board climbing apps. • Reset to a Short or Long rest right from there — no app-switching mid-session. KNOW YOUR SESSIONS • Every session is saved with your rest count, total rest time, and target. • Tap a session to see each rest — requested vs. actually achieved — plus a chart of your rests over time, so you can tell whether you're really resting enough. MAKE IT YOURS • Set your own Short and Long rest durations. • Optional notification when your rest is up. PRIVATE BY DESIGN • No account, no sign-in, no tracking. Everything stays on your device and syncs only between your iPhone and (optionally) your Apple Watch. Rest smart, send harder & get strong!

Screenshots

Frez4 screens
Boulder Rest3 screens

Verdict

The call

The clearest difference is in-app purchases: Boulder Rest at none against Frez's 16. Frez's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Frez sells 15 in-app purchases, starting at $2.99 per month. Boulder Rest asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Frez versus Boulder Rest: the parameters behind the verdict, then further details
ParameterFrezBoulder Rest
PriceFreeFree
Rating4.7 (27 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings27 — better—
Update frequencyEvery 4 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, Apple Watch
Requires iOS15.0 — better17.0
Further details — not scored
Size120 MB5 MB
Age rating4+4+
DeveloperDonghyun KimOlivier Bohrer

In-app purchases

15 purchases

Frez

Subscriptions11
  • ClimbHarder Premium (Monthly)1 Month trial$2.991 Month
  • Training Tools (Monthly)2 variants$3.991 Month
  • Training Tools (Monthly)$4.991 Month
Show 8 more
  • ClimbHarder Premium (Monthly)$4.991 Month
  • Training Tools (Yearly)$19.991 Year
  • ClimbHarder Premium (Yearly)1 Month trial$23.991 Year
  • Training Tools (Yearly)3 Days trial$24.991 Year
  • Training Tools (Yearly)7 Days trial$29.991 Year
  • Training Tools (Yearly)14 Days trial$29.991 Year
  • ClimbHarder Premium (Yearly)7 Days trial$29.991 Year
  • ClimbHarder Premium (Yearly)1 Year trial$29.991 Year
One-time4
  • ClimbHarder Training Tools$29.99
  • ClimbHarder Training Tools$39.99
  • ClimbHarder Training Tools$89.99
Show 1 more
  • ClimbHarder Training Tools$119.99
None

Boulder Rest

No in-app purchases

Questions

Is Frez free?
Frez is free to download, with in-app purchases available.
Is Boulder Rest free?
Boulder Rest is free to download, with no in-app purchases.
Do Frez or Boulder Rest have ads?
Neither Frez nor Boulder Rest shows ads.

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