# Biological clock vs Make24

The clearest difference is update cadence: Make24 at every 2 months against Biological clock's every 13 months. Biological clock's advantage is iOS requirement (12.1 vs 15.0). 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.

Biological clock ships an update every 13 months, Make24 every 2 months. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Biological clock | Make24 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/make24-math-puzzle-game/id6759705622/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 13 months | **Every 2 months** |
| Monetization | — | Ad-supported |
| Size | 13 MB | 88 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [HAREPPO](https://appshunter.io/developer/604325074) | [K2019414942 SOUTH AFRICA PTY LTD](https://appshunter.io/developer/1528770118) |

## What reviewers say

### Biological clock

[App page](https://appshunter.io/ios/app/biological-clock-everywhere/id1099546322)

**Features:** Vision Pro support

**In-app purchases:** none


### Make24

[App page](https://appshunter.io/ios/app/make24-math-puzzle-game/id6759705622)

Challenge your mind with a classic number puzzle game. Combine four numbers using basic arithmetic operations to reach 24. Compete globally and improve your mental math skills.

**Highlights:** Combine four numbers to make 24, Use addition, subtraction, multiplication, and division, Global leaderboards, Unlock achievements, Offline playable, Suitable for all ages

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Biological clock free?

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

### Is Make24 free?

Make24 is free to download, with no in-app purchases.

### Do Biological clock or Make24 have ads?

Both Biological clock and Make24 show ads.

### Which is updated more often, Biological clock or Make24?

Biological clock ships an update every 13 months, and Make24 every 2 months. Most recently, Biological clock was updated on November 6, 2026 and Make24 on October 31, 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.*