# チャットAI vs Plainify

The clearest difference is in-app purchases: Plainify at none against チャットAI's 1. Plainify also leads on update cadence (every 5 days vs every 3 weeks). チャットAI's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. チャットAI sells 1 in-app purchase, starting at $2.99 per 7 days. Plainify asks for nothing beyond the download.

チャットAI ships an update every 3 weeks, Plainify every 5 days. The most recent releases landed on October 13, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | チャットAI | Plainify |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 11 MB | 61 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Akihiro Kokubo](https://appshunter.io/developer/1485855806) | [Kasanimaro](https://appshunter.io/developer/1846987954) |

## What reviewers say

### チャットAI

[App page](https://appshunter.io/ios/app/ai-ai/id6446063282)

This AI-powered chatbot provides instant, accurate responses to any question. Easily accessible on your smartphone, it supports Japanese and helps improve your writing skills. Experience the power of AI for conversation and assistance.

**Highlights:** Advanced AI for instant answers, Japanese language support, Improve writing skills, Easy smartphone access, AI-powered conversations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | per 7 days |


### Plainify

[App page](https://appshunter.io/ios/app/plainify-simplify-language/id6756869043)

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

**In-app purchases:** none


## Frequently asked questions

### Is チャットAI free?

チャットAI is free to download, with in-app purchases available.

### Is Plainify free?

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

### Do チャットAI or Plainify have ads?

Plainify shows ads; チャットAI does not.

### Which is updated more often, チャットAI or Plainify?

チャットAI ships an update every 3 weeks, and Plainify every 5 days. Most recently, チャットAI was updated on October 13, 2026 and Plainify on October 30, 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.*