# コトアム vs Writter (ライター)

The clearest difference is monetization model: コトアム at free against Writter (ライター)'s free with in-app purchases. Writter (ライター)'s advantage is review sentiment (75% vs 67%) and iOS requirement (13.0 vs 15.0). On price, update cadence, 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.

コトアム ships an update every 3 weeks, Writter (ライター) fortnightly. The most recent releases landed on September 17, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | コトアム | Writter (ライター) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 78 MB | 186 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [TOKYO DOME CORPORATION](https://appshunter.io/developer/1121904377) | [株式会社GOLDENBEAM](https://appshunter.io/developer/1732893202) |

## What reviewers say

### コトアム

[App page](https://appshunter.io/ios/app/id6526468549)

A quiet literary social network for crafting and reading short literary works like tanka, essays, and novels. Users can create personal "playlists" of favorite pieces, share their own creations, and discover new literary gems.

**Highlights:** Create and share short literary works, Curate personal "playlists" of favorite pieces, Discover popular and user-made playlists, Supports various genres including tanka, novels, and essays, Automatic vertical layout generation for writing, Share creations to X (formerly Twitter)

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

**In-app purchases:** none


### Writter (ライター)

[App page](https://appshunter.io/ios/app/writter/id6747600446)

This social networking app allows users to share their creative works, from short posts to full-length books and manga. It features a unique "space display" for content diffusion, an immersive exploration screen, and tools for writing and selling creative content. The platform aims to connect creators and readers through a novel discovery experience.

**Highlights:** 1-day 1-time post diffusion, Immersive 'SPACE' exploration, Multiple writing styles (posts, shorts, books), Smartphone-optimized writing editor, Monetize creations through sales, R18 content zoning, Offline reading of downloaded books

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

**In-app purchases:** none


## Frequently asked questions

### Is コトアム free?

コトアム is free to download, with no in-app purchases.

### Is Writter (ライター) free?

Writter (ライター) is free to download, with no in-app purchases.

### Do コトアム or Writter (ライター) have ads?

Neither コトアム nor Writter (ライター) shows ads.

### Which is updated more often, コトアム or Writter (ライター)?

コトアム ships an update every 3 weeks, and Writter (ライター) fortnightly. Most recently, コトアム was updated on September 17, 2026 and Writter (ライター) on September 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.*