# PKU妈妈 vs 维护者

PKU妈妈 and 维护者 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | PKU妈妈 | 维护者 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Size | 21 MB | 25 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [振国 陈](https://appshunter.io/developer/980675071) | [深圳智博通电子有限公司](https://appshunter.io/developer/1543347997) |

## What reviewers say

### PKU妈妈

[App page](https://appshunter.io/ios/app/pku/id1040572686)

**Features:** macOS Compatibility

**In-app purchases:** none


### 维护者

[App page](https://appshunter.io/ios/app/id6450891379)

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

**In-app purchases:** none


## Frequently asked questions

### Is PKU妈妈 free?

PKU妈妈 is free to download, with no in-app purchases.

### Is 维护者 free?

维护者 is free to download, with no in-app purchases.

### Do PKU妈妈 or 维护者 have ads?

Neither PKU妈妈 nor 维护者 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.*