# Challenger App vs Chamaeleon

The clearest difference is update cadence: Chamaeleon at every 2 months against Challenger App's every 5 months. Challenger App's advantage is iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Challenger App ships an update every 5 months, Chamaeleon every 2 months. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Challenger App | Chamaeleon |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 41 MB | 73 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Coteng NV](https://appshunter.io/developer/1479551392) | [Chamaleon GmbH](https://appshunter.io/developer/1692266613) |

## What reviewers say

### Challenger App

[App page](https://appshunter.io/ios/app/challenger-app/id1586938718)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chamaeleon

[App page](https://appshunter.io/ios/app/chamaeleon/id6450193104)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Challenger App free?

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

### Is Chamaeleon free?

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

### Do Challenger App or Chamaeleon have ads?

Neither Challenger App nor Chamaeleon shows ads.

### Which is updated more often, Challenger App or Chamaeleon?

Challenger App ships an update every 5 months, and Chamaeleon every 2 months. Most recently, Challenger App was updated on September 10, 2026 and Chamaeleon on September 11, 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.*