Comparison

Frez vs dtb2

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

dtb2

Features
Read full description

Digital Training Boards mobile App, This allows you to log on with your existing DTB log on. You can only register on one of the physical DTB boards anywhere in the world, this is fully encrypted The App allows you to select a wall and then a route, if you are close enough to the wall it will allow you to cast/display the problem onto the board via the LED's installed on the wall. The app connects to the board via an internet connection, so an internet connection is required by the APP, the walls are also GPS ring fenced, so the APP needs to access your mobile devices GPS position, this is never documented. The APP does not use Bluetooth to connect. The app allows you to track your climbing on all DTB board around the world. Simplified search system, simple log book and an ability to cast you problems to a board dependent upon your distance from it. Unique "what's on" feature allows you to find out what is actually on any board. Like, project and tick problems Videos Overview of system https://youtu.be/tJEhy16cy-M Connecting to a Board https://youtu.be/2Id7J_tsIHc Whats on feature https://youtube.com/shorts/ROUsM82kSWA

Screenshots

Frez4 screens
dtb24 screens

Verdict

The call

The clearest difference is in-app purchases: dtb2 at none against Frez's 16. dtb2 also leads on iOS requirement (13.0 vs 15.0). Frez's advantage is update cadence (weekly vs every 4 months). On price, ads and device support 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. dtb2 asks for nothing beyond the download.

UpkeepUpdate frequency

Frez ships an update weekly, dtb2 every 4 months. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 7 level
Frez versus dtb2: the parameters behind the verdict, then further details
ParameterFrezdtb2
PriceFreeFree
Rating4.9 (26 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings26 — better—
Update frequencyWeekly — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size119 MB57 MB
Age rating4+4+
DeveloperDonghyun Kimgareth Scott

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

dtb2

No in-app purchases

Questions

Is Frez free?
Frez is free to download, with in-app purchases available.
Is dtb2 free?
dtb2 is free to download, with no in-app purchases.
Do Frez or dtb2 have ads?
Neither Frez nor dtb2 shows ads.
Which is updated more often, Frez or dtb2?
Frez ships an update weekly, and dtb2 every 4 months. Most recently, Frez was updated on September 9, 2026 and dtb2 on September 10, 2026.

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