# cf vs Zone2

The clearest difference is iOS requirement: cf at 15 against Zone2's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

cf ships an update every 2 weeks, Zone2 every 3 weeks. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | cf | Zone2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/cf/id1536948498/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 30.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free | — |
| Size | 109 MB | 5 MB |
| Requires iOS | **15** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [clever fit GmbH](https://appshunter.io/developer/1536948500) | [Marcel Krause](https://appshunter.io/developer/1895460093) |

## What reviewers say

### cf

[App page](https://appshunter.io/ios/app/cf/id1536948498)

Track your fitness journey with this app from a European fitness chain. Manage training appointments, access your workout plans anytime, and update personal contract details easily. It extends your fitness experience beyond the gym.

**Highlights:** Book training appointments, Access training plans, Update contract details, Track fitness goals, Digital fitness companion

**Features:** Apple Wallet

**In-app purchases:** none


### Zone2

[App page](https://appshunter.io/ios/app/zone2bike/id6802252977)

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

**In-app purchases:** none


## Frequently asked questions

### Is cf free?

cf is free to download, with no in-app purchases.

### Is Zone2 free?

Zone2 is free to download, with no in-app purchases.

### Do cf or Zone2 have ads?

Neither cf nor Zone2 shows ads.

### Which is updated more often, cf or Zone2?

cf ships an update every 2 weeks, and Zone2 every 3 weeks. Most recently, cf was updated on October 19, 2026 and Zone2 on October 3, 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.*