# FitRats vs ChallengeCircle

The clearest difference is in-app purchases: FitRats at none against ChallengeCircle's 4. FitRats also leads on update cadence (every 5 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChallengeCircle sells 4 in-app purchases, starting at $0.99 per 7 days. FitRats asks for nothing beyond the download.

FitRats ships an update every 5 days, ChallengeCircle fortnightly. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | FitRats | ChallengeCircle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Size | 57 MB | 57 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [All About Me GmbH](https://appshunter.io/developer/1577935997) | [AGBO Ventures LTD](https://appshunter.io/developer/1362276420) |

## What reviewers say

### FitRats

[App page](https://appshunter.io/ios/app/fitrats/id6744665250)

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

**In-app purchases:** none


### ChallengeCircle

[App page](https://appshunter.io/ios/app/challengecircle/id6757082724)

**Features:** Apple Wallet

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $0.99 | per 7 days |
| Monthly Premium | $2.99 | per month |
| Monthly Premium | $24.99 | per year |
| Premium | $59.99 | one-time |


## Frequently asked questions

### Is FitRats free?

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

### Is ChallengeCircle free?

ChallengeCircle is free to download, with in-app purchases available.

### Do FitRats or ChallengeCircle have ads?

Neither FitRats nor ChallengeCircle shows ads.

### Which is updated more often, FitRats or ChallengeCircle?

FitRats ships an update every 5 days, and ChallengeCircle fortnightly. Most recently, FitRats was updated on October 8, 2026 and ChallengeCircle on October 4, 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.*