# スマート置換 vs Keyfred 日本語キーボード

The clearest difference is in-app purchases: スマート置換 at none against Keyfred 日本語キーボード's 4. スマート置換 also leads on device support (3 vs 1). Keyfred 日本語キーボード's advantage is iOS requirement (16.0 vs 26.2). On price and ads there is nothing between them.

Both are free to download. Keyfred 日本語キーボード sells 4 in-app purchases, starting at $2.99 per month. スマート置換 asks for nothing beyond the download.

## The numbers

| Metric | スマート置換 | Keyfred 日本語キーボード |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Monetization | — | Freemium |
| Size | 3 MB | 91 MB |
| Requires iOS | 26.2 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Satsuki Wakasugi](https://appshunter.io/developer/1516038890) | [Keyfred Inc.](https://appshunter.io/developer/1878124574) |

## What reviewers say

### スマート置換

[App page](https://appshunter.io/ios/app/id6760252962)

**Features:** Vision Pro support

**In-app purchases:** none


### Keyfred 日本語キーボード

[App page](https://appshunter.io/ios/app/keyfred/id6764822180)

This AI-powered keyboard enhances your writing by offering real-time corrections, rewrites, and translations directly within any app. Improve clarity, tone, and fluency for emails, messages, and social media posts.

**Highlights:** AI-powered smart keyboard, Real-time, context-aware correction alerts, AI sentence correction, Rewrite with the right tone and style, Natural multilingual translation, Custom keyboard themes, Korean, English, and Japanese input support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keyfred Pro Monthly | $2.99 | per month |
| Keyfred Pro 6 Months | $12.99 | per 6 months |
| Keyfred Pro Yearly | $21.95 | per year |
| 100 Credits | $4.99 | one-time |


## Frequently asked questions

### Is スマート置換 free?

スマート置換 is free to download, with no in-app purchases.

### Is Keyfred 日本語キーボード free?

Keyfred 日本語キーボード is free to download, with in-app purchases available.

### Do スマート置換 or Keyfred 日本語キーボード have ads?

Neither スマート置換 nor Keyfred 日本語キーボード shows ads.

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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.*