# ayi8 vs 知历实验室

ayi8 and 知历实验室 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 | ayi8 | 知历实验室 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 3 MB | 1 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [汉民 杨](https://appshunter.io/developer/611733383) | [山杰 韩](https://appshunter.io/developer/1884328098) |

## What reviewers say

### ayi8

[App page](https://appshunter.io/ios/app/ayi8/id6751799475)

**In-app purchases:** none


### 知历实验室

[App page](https://appshunter.io/ios/app/id6768883256)

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

**In-app purchases:** none


## Frequently asked questions

### Is ayi8 free?

ayi8 is free to download, with no in-app purchases.

### Is 知历实验室 free?

知历实验室 is free to download, with no in-app purchases.

### Do ayi8 or 知历实验室 have ads?

Neither ayi8 nor 知历实验室 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.*