# Clock Challenge vs Making Change USD

The clearest difference is price: Making Change USD at Free against Clock Challenge's $0.99. Making Change USD also leads on iOS requirement (11 vs 14.2). Clock Challenge's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On update cadence and ads there is nothing between them.

Making Change USD is free to download; Clock Challenge costs $0.99 up front. Making Change USD sells 1 one-off in-app purchase. Clock Challenge asks for nothing beyond the download.

Clock Challenge ships an update every 15 months, Making Change USD every 17 months. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Clock Challenge | Making Change USD |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 15 months** | Every 17 months |
| Size | 59 MB | 75 MB |
| Requires iOS | 14.2 | **11** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jariya Tuantranont](https://appshunter.io/developer/404509814) | [Blooming Kids Software LLC](https://appshunter.io/developer/501015942) |

## What reviewers say

### Clock Challenge

[App page](https://appshunter.io/ios/app/clock-challenge/id597084739)

**Features:** macOS Compatibility

**In-app purchases:** none


### Making Change USD

[App page](https://appshunter.io/ios/app/making-change-usd/id1304835896)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Making Change USD | $3.99 | one-time |


## Frequently asked questions

### Is Clock Challenge free?

Clock Challenge costs $0.99, with no in-app purchases.

### Is Making Change USD free?

Making Change USD is free to download, with in-app purchases available.

### Do Clock Challenge or Making Change USD have ads?

Neither Clock Challenge nor Making Change USD shows ads.

### Which is updated more often, Clock Challenge or Making Change USD?

Clock Challenge ships an update every 15 months, and Making Change USD every 17 months. Most recently, Clock Challenge was updated on September 29, 2026 and Making Change USD on October 2, 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.*