# 数独侦探手 vs Croc 24

The clearest difference is in-app purchases: 数独侦探手 at none against Croc 24's 1. 数独侦探手 also leads on iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Croc 24 sells 1 one-off in-app purchase. 数独侦探手 asks for nothing beyond the download.

## The numbers

| Metric | 数独侦探手 | Croc 24 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/croc-24-math-game/id6746104087/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free |
| Size | 25 MB | 23 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zhuhai Record Yi Technology Co.,Ltd.](https://appshunter.io/developer/1638483191) | [Wei Wang](https://appshunter.io/developer/1467609434) |

## What reviewers say

### 数独侦探手

[App page](https://appshunter.io/ios/app/id6745168821)

**Features:** macOS Compatibility

**In-app purchases:** none


### Croc 24

[App page](https://appshunter.io/ios/app/croc-24-math-game/id6746104087)

This app offers a fun way to practice and master the 24 game. It features a free calculator for finding solutions, a challenge mode for testing skills, and a history tracker to monitor progress. Enjoy a delightful and ad-free mathematical adventure.

**Highlights:** Free calculator for finding all solutions, Challenge mode with random puzzles, History tracker for progress monitoring, Powerful mathematical algorithm, Adorable and intuitive interface, Ad-free gaming experience

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Premium | $1.99 | one-time |


## Frequently asked questions

### Is 数独侦探手 free?

数独侦探手 is free to download, with no in-app purchases.

### Is Croc 24 free?

Croc 24 is free to download, with in-app purchases available.

### Do 数独侦探手 or Croc 24 have ads?

Neither 数独侦探手 nor Croc 24 shows ads.

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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.*