# AI日記帳 vs OHAYO

The clearest difference is in-app purchases: OHAYO at none against AI日記帳's 4. OHAYO also leads on ads (none vs shown) and update cadence (daily vs monthly). On price and device support there is nothing between them.

Both are free to download. AI日記帳 sells 4 in-app purchases, starting at $0.49 per month. OHAYO asks for nothing beyond the download.

AI日記帳 ships an update monthly, OHAYO daily. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | AI日記帳 | OHAYO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Daily** |
| Size | 11 MB | 56 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kazuaki Takahashi](https://appshunter.io/developer/1691521543) | [Kai Michishita](https://appshunter.io/developer/6781504876) |

## What reviewers say

### AI日記帳

[App page](https://appshunter.io/ios/app/ai-ai20/id6475445580)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Diary PRO Edition | $0.49 | per month |
| 生成ポイント（10ポイント） | $0.99 | one-time |
| 生成ポイント（30ポイント） | $2.99 | one-time |
| 生成ポイント（70ポイント） | $4.99 | one-time |


### OHAYO

[App page](https://appshunter.io/ios/app/ohayo/id6781504874)

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

**In-app purchases:** none


## Frequently asked questions

### Is AI日記帳 free?

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

### Is OHAYO free?

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

### Do AI日記帳 or OHAYO have ads?

AI日記帳 shows ads; OHAYO does not.

### Which is updated more often, AI日記帳 or OHAYO?

AI日記帳 ships an update monthly, and OHAYO daily. Most recently, AI日記帳 was updated on November 8, 2026 and OHAYO on November 5, 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.*