# KeyWise vs Plain

The clearest difference is review sentiment: KeyWise at 80% against Plain's 50%. KeyWise also leads on update cadence (weekly vs every 4 months). Plain's advantage is device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. KeyWise sells 3 in-app purchases, starting at $1.99 per 7 days and Plain sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

KeyWise ships an update weekly, Plain every 4 months. The most recent releases landed on October 10, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | KeyWise | Plain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/keywise-ai-keyboard-assistant/id6458590260/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **80.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 84 MB | 26 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jaroslav Janda](https://appshunter.io/developer/1701325799) | [MOBIVERSITE YAZILIM BILISIM REKLAM VE DANISMANLIK HIZMETLERI SANAYI TICARET LIMITED STI](https://appshunter.io/developer/968440561) |

## What reviewers say

### KeyWise

[App page](https://appshunter.io/ios/app/keywise-ai-keyboard-assistant/id6458590260)

Enhance your writing with an AI-powered keyboard assistant. Correct grammar, rephrase text, change tone, translate languages, and ask AI questions directly from your keyboard.

**Highlights:** Grammar and spelling correction, AI text enhancement and rephrasing, Tone and style adjustment, Real-time translation, Ask AI questions, Emoji suggestions

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| KeyWise Pro 1 Month | $4.99 | per month |
| KeyWise Pro Lifetime | $39.99 | one-time |


### Plain

[App page](https://appshunter.io/ios/app/plain-ai-keyboard/id6467874401)

This advanced AI-powered keyboard acts as your personal text assistant, offering features like grammar correction, translation, and tone adjustment. It helps you write, communicate, and generate text more effectively across all your applications.

**Highlights:** Grammar and spell check, Seamless translation, AI-powered answers, Tone adjustment, Text paraphrasing, Response generation, Text continuation, Synonym finder

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week PRO | $4.99 | per 7 days |
| 1 Month PRO | $9.99 | per month |
| 1 Year PRO | $39.99 | per year |


## Frequently asked questions

### Is KeyWise free?

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

### Is Plain free?

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

### Do KeyWise or Plain have ads?

Neither KeyWise nor Plain shows ads.

### Which is updated more often, KeyWise or Plain?

KeyWise ships an update weekly, and Plain every 4 months. Most recently, KeyWise was updated on October 10, 2026 and Plain 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.*