# MemPie AI vs oboo | 撮るだけで作れる単語帳アプリ

The clearest difference is iOS requirement: MemPie AI at 12.0 against oboo | 撮るだけで作れる単語帳アプリ's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. MemPie AI sells 2 in-app purchases, starting at $1.99 per month and oboo | 撮るだけで作れる単語帳アプリ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | MemPie AI | oboo | 撮るだけで作れる単語帳アプリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 days | Every 5 days |
| Size | 106 MB | 105 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ichi Hosotsuji](https://appshunter.io/developer/1808829369) | [Waffle, LCC](https://appshunter.io/developer/1777946699) |

## What reviewers say

### 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 |


### oboo | 撮るだけで作れる単語帳アプリ

[App page](https://appshunter.io/ios/app/oboo/id6757411388)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プロ | $5.99 | one-time |


## Frequently asked questions

### Is MemPie AI free?

MemPie AI is free to download, with in-app purchases available.

### Is oboo | 撮るだけで作れる単語帳アプリ free?

oboo | 撮るだけで作れる単語帳アプリ is free to download, with in-app purchases available.

### Do MemPie AI or oboo | 撮るだけで作れる単語帳アプリ have ads?

Both MemPie AI and oboo | 撮るだけで作れる単語帳アプリ show ads.

### Which is updated more often, MemPie AI or oboo | 撮るだけで作れる単語帳アプリ?

MemPie AI ships an update every 5 days, and oboo | 撮るだけで作れる単語帳アプリ every 5 days. Most recently, MemPie AI was updated on October 17, 2026 and oboo | 撮るだけで作れる単語帳アプリ on October 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.*