# 中首养苑 vs E Booster

The clearest difference is in-app purchases: 中首养苑 at none against E Booster's 10. 中首养苑 also leads on iOS requirement (9.0 vs 15.0). E Booster's advantage is update cadence (every 6 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. E Booster sells 10 one-off in-app purchases. 中首养苑 asks for nothing beyond the download.

中首养苑 ships an update every 2 months, E Booster every 6 days. The most recent releases landed on September 19, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 中首养苑 | E Booster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 49 MB | 194 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Zhongshou Taiyang Group Co., Ltd](https://appshunter.io/developer/1501655979) | [Eostre Sdn. Bhd.](https://appshunter.io/developer/1502219462) |

## What reviewers say

### 中首养苑

[App page](https://appshunter.io/ios/app/id1502542451)

**Features:** macOS Compatibility

**In-app purchases:** none


### E Booster

[App page](https://appshunter.io/ios/app/e-booster/id1514561119)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 15.99 USD | $15.99 | one-time |
| 20.99 USD | $20.99 | one-time |
| USD 25.99 | $25.99 | one-time |
| Metatron's Cube | $29.99 | one-time |
| Nano Silver | $29.99 | one-time |
| Vagus Nerve Balance | $29.99 | one-time |
| 30.99 USD | $30.99 | one-time |
| 35.99 USD | $35.99 | one-time |
| Wave | $46.99 | one-time |
| Silent Solfeggio | $219.99 | one-time |


## Frequently asked questions

### Is 中首养苑 free?

中首养苑 is free to download, with no in-app purchases.

### Is E Booster free?

E Booster is free to download, with in-app purchases available.

### Do 中首养苑 or E Booster have ads?

Neither 中首养苑 nor E Booster shows ads.

### Which is updated more often, 中首养苑 or E Booster?

中首养苑 ships an update every 2 months, and E Booster every 6 days. Most recently, 中首养苑 was updated on September 19, 2026 and E Booster on September 9, 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.*