# 快速解数独工具 vs 环评工程师真题库

The clearest difference is in-app purchases: 快速解数独工具 at none against 环评工程师真题库's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 环评工程师真题库 sells 3 one-off in-app purchases. 快速解数独工具 asks for nothing beyond the download.

## The numbers

| Metric | 快速解数独工具 | 环评工程师真题库 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 5 MB | 61 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [楠 唐](https://appshunter.io/developer/1603049157) | [zhangpeng](https://appshunter.io/developer/1736067310) |

## What reviewers say

### 快速解数独工具

[App page](https://appshunter.io/ios/app/id6444017157)

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

**In-app purchases:** none


### 环评工程师真题库

[App page](https://appshunter.io/ios/app/id6743696837)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月卡 | $2.99 | one-time |
| 季卡 | $5.99 | one-time |
| 年卡 | $11.99 | one-time |


## Frequently asked questions

### Is 快速解数独工具 free?

快速解数独工具 is free to download, with no in-app purchases.

### Is 环评工程师真题库 free?

环评工程师真题库 is free to download, with in-app purchases available.

### Do 快速解数独工具 or 环评工程师真题库 have ads?

Neither 快速解数独工具 nor 环评工程师真题库 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.*