# Frez vs dtb2

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.

Both are free to download. Frez sells 15 in-app purchases, starting at $2.99 per month. dtb2 asks for nothing beyond the download.

Frez ships an update weekly, dtb2 every 4 months. The most recent releases landed on September 27, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Frez | dtb2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (27 ratings)](https://appshunter.io/ios/app/frez-isometric-training/id6730120024/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 months |
| Monetization | Freemium | — |
| Size | 119 MB | 57 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Donghyun Kim](https://appshunter.io/developer/1669856479) | [gareth Scott](https://appshunter.io/developer/1709863016) |

## What reviewers say

### Frez

[App page](https://appshunter.io/ios/app/frez-isometric-training/id6730120024)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClimbHarder Premium (Monthly) | $2.99 | per month |
| Training Tools (Monthly) | $3.99 | per month |
| Training Tools (Monthly) | $4.99 | per month |
| ClimbHarder Premium (Monthly) | $4.99 | per month |
| Training Tools (Yearly) | $19.99 | per year |
| ClimbHarder Premium (Yearly) | $23.99 | per year |
| Training Tools (Yearly) | $24.99 | per year |
| Training Tools (Yearly) | $29.99 | per year |
| Training Tools (Yearly) | $29.99 | per year |
| ClimbHarder Premium (Yearly) | $29.99 | per year |
| ClimbHarder Premium (Yearly) | $29.99 | per year |
| ClimbHarder Training Tools | $29.99 | one-time |
| ClimbHarder Training Tools | $39.99 | one-time |
| ClimbHarder Training Tools | $89.99 | one-time |
| ClimbHarder Training Tools | $119.99 | one-time |


### dtb2

[App page](https://appshunter.io/ios/app/dtb2/id6754847862)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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 27, 2026 and dtb2 on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*