# Character Memo vs AI BookSommelier

The clearest difference is update cadence: Character Memo at every 4 days against AI BookSommelier's every 2 weeks. AI BookSommelier's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.2). On price, ads and in-app purchases there is nothing between them.

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

Character Memo ships an update every 4 days, AI BookSommelier every 2 weeks. The most recent releases landed on November 5, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Character Memo | AI BookSommelier |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Size | 10 MB | 92 MB |
| Requires iOS | 18.2 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Takatoshi Suzuki](https://appshunter.io/developer/1807015043) | [Sota Kondo](https://appshunter.io/developer/1696498621) |

## What reviewers say

### Character Memo

[App page](https://appshunter.io/ios/app/character-memo/id6744309745)

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

**In-app purchases:** none


### AI BookSommelier

[App page](https://appshunter.io/ios/app/ai-booksommelier/id6746350104)

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

**In-app purchases:** none


## Frequently asked questions

### Is Character Memo free?

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

### Is AI BookSommelier free?

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

### Do Character Memo or AI BookSommelier have ads?

Both Character Memo and AI BookSommelier show ads.

### Which is updated more often, Character Memo or AI BookSommelier?

Character Memo ships an update every 4 days, and AI BookSommelier every 2 weeks. Most recently, Character Memo was updated on November 5, 2026 and AI BookSommelier on November 8, 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.*