# 婷婷三字经 vs 健身教练题库

The clearest difference is device support: 婷婷三字经 at 3 against 健身教练题库's —. 婷婷三字经 also leads on iOS requirement (9.0 vs 12.0). On price and in-app purchases there is nothing between them.

Both are free to download. 婷婷三字经 sells 2 one-off in-app purchases and 健身教练题库 sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 婷婷三字经 | 健身教练题库 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | Every 7 months | — |
| Size | 35 MB | 87 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [MING SHI GAO TU HANGZHOU SCI.TECH CO.,LTD](https://appshunter.io/developer/1508707654) | [长沙优学互动信息技术有限公司](https://appshunter.io/developer/1247376685) |

## What reviewers say

### 婷婷三字经

[App page](https://appshunter.io/ios/app/id1464490609)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 128学贝 | $19.99 | one-time |
| 198学贝 | $29.99 | one-time |


### 健身教练题库

[App page](https://appshunter.io/ios/app/id6475804120)

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1学币 | $0.99 | one-time |
| 10学币 | $0.99 | one-time |
| 40学币 | $5.99 | one-time |
| 50学币 | $6.99 | one-time |
| 100学币 | $14.99 | one-time |
| 120学币 | $17.99 | one-time |
| 150学币 | $19.99 | one-time |
| 300学币 | $39.99 | one-time |


## Frequently asked questions

### Is 婷婷三字经 free?

婷婷三字经 is free to download, with in-app purchases available.

### Is 健身教练题库 free?

健身教练题库 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.*