# 知識ング!! vs MemPie AI

The clearest difference is in-app purchases: 知識ング!! at none against MemPie AI's 2. MemPie AI's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. MemPie AI sells 2 in-app purchases, starting at $1.99 per month. 知識ング!! asks for nothing beyond the download.

## The numbers

| Metric | 知識ング!! | MemPie AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Every 5 days |
| Size | 71 MB | 106 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HIKARU UEDA](https://appshunter.io/developer/1617407962) | [Ichi Hosotsuji](https://appshunter.io/developer/1808829369) |

## What reviewers say

### 知識ング!!

[App page](https://appshunter.io/ios/app/id6504483121)

**In-app purchases:** none


### MemPie AI

[App page](https://appshunter.io/ios/app/mempie-ai/id6744670157)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 暗記Pai月間プレミアムプラン | $1.99 | per month |
| 暗記Pai年間プレミアムプラン | $19.99 | per year |


## Frequently asked questions

### Is 知識ング!! free?

知識ング!! is free to download, with no in-app purchases.

### Is MemPie AI free?

MemPie AI 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.*