# 小蜗牛智慧书 vs 涂涂ABC

The clearest difference is in-app purchases: 小蜗牛智慧书 at none against 涂涂ABC's 2. 小蜗牛智慧书 also leads on iOS requirement (12.0 vs 17.0). 涂涂ABC's advantage is device support. On price there is nothing between them.

Both are free to download. 涂涂ABC sells 2 in-app purchases, starting at $3.99 per month. 小蜗牛智慧书 asks for nothing beyond the download.

## The numbers

| Metric | 小蜗牛智慧书 | 涂涂ABC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 3 weeks |
| Size | 89 MB | 338 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Hangzhou Daxiang Tianxia Technology Co., Ltd.](https://appshunter.io/developer/1256255332) | [Shanghai Tutu Aixue Technology Co., Ltd.](https://appshunter.io/developer/1790564141) |

## What reviewers say

### 小蜗牛智慧书

[App page](https://appshunter.io/ios/app/id1535575929)

**In-app purchases:** none


### 涂涂ABC

[App page](https://appshunter.io/ios/app/abc/id6760688316)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TutuABC Membership | $3.99 | per month |
| TutuABC Membership | $29.99 | per year |


## Frequently asked questions

### Is 小蜗牛智慧书 free?

小蜗牛智慧书 is free to download, with no in-app purchases.

### Is 涂涂ABC free?

涂涂ABC is free to download, with in-app purchases available.

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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.*