# AI添削・校正 vs Logos

The clearest difference is in-app purchases: AI添削・校正 at none against Logos's 4. AI添削・校正 also leads on device support (3 vs 1). Logos's advantage is ads (none vs shown) and update cadence (daily vs every 5 days). On price and iOS requirement there is nothing between them.

Both are free to download. Logos sells 4 in-app purchases, starting at $5.99 per month. AI添削・校正 asks for nothing beyond the download.

AI添削・校正 ships an update every 5 days, Logos daily. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | AI添削・校正 | Logos |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Daily** |
| Monetization | — | Freemium |
| Size | 14 MB | 5 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hideshi Otsuru](https://appshunter.io/developer/446092368) | [Ryota Kando](https://appshunter.io/developer/1813194957) |

## What reviewers say

### AI添削・校正

[App page](https://appshunter.io/ios/app/ai/id6749517394)

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

**In-app purchases:** none


### Logos

[App page](https://appshunter.io/ios/app/logos-aiai/id6759280594)

This app uses advanced AI to automatically transcribe your voice memos into text and then refines the text into well-structured notes, summaries, or prompts. It offers simple note management, iCloud synchronization, and customizable themes.

**Highlights:** High-accuracy AI transcription (Wisper), AI text refinement and summarization (Gemini), Customizable prompt-based text conversion, Simple note management with folders and pins, Automatic iCloud synchronization, Selectable theme colors

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starterプラン | $5.99 | per month |
| Standardプラン | $19.99 | per month |
| Proプラン | $59.99 | per month |
| Businessプラン | $199.99 | per month |


## Frequently asked questions

### Is AI添削・校正 free?

AI添削・校正 is free to download, with no in-app purchases.

### Is Logos free?

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

### Do AI添削・校正 or Logos have ads?

AI添削・校正 shows ads; Logos does not.

### Which is updated more often, AI添削・校正 or Logos?

AI添削・校正 ships an update every 5 days, and Logos daily. Most recently, AI添削・校正 was updated on October 30, 2026 and Logos 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.*