# AI絵日記 vs Head

The clearest difference is ads: Head at none against AI絵日記's shown. Head also leads on update cadence (every 4 days vs monthly) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. AI絵日記 sells 3 in-app purchases, starting at $0.49 per month and Head sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

AI絵日記 ships an update monthly, Head every 4 days. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | AI絵日記 | Head |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 22 MB | 65 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Koudai Kudou](https://appshunter.io/developer/1744671690) | [KAI SONODA](https://appshunter.io/developer/6790623378) |

## What reviewers say

### AI絵日記

[App page](https://appshunter.io/ios/app/ai/id6748383978)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| フルバージョンへのアップデート | $0.49 | per month |
| Pro版へのアップグレード | $0.99 | one-time |
| Pro版へのアップグレード | $2.99 | one-time |


### Head

[App page](https://appshunter.io/ios/app/head-light-lighten-your-load/id6790623376)

This app helps you clear your mind by capturing thoughts via voice and organizing them with AI. It also lets you curate digital content and track personal logs like medication and mood.

**Highlights:** Voice-to-text thought capture, AI-powered thought sorting, Digital content curation (links), Medication and sleep logging, Daily mood tracking, Customizable routines and timers

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Pro Monthly | $5.99 | per month |
| AI Pro Annual | $49.99 | per year |
| More shelves | $5.99 | one-time |


## Frequently asked questions

### Is AI絵日記 free?

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

### Is Head free?

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

### Do AI絵日記 or Head have ads?

AI絵日記 shows ads; Head does not.

### Which is updated more often, AI絵日記 or Head?

AI絵日記 ships an update monthly, and Head every 4 days. Most recently, AI絵日記 was updated on October 25, 2026 and Head on October 11, 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.*