# Plain vs KeyWise

The clearest difference is review sentiment: KeyWise at 100% against Plain's 50%. KeyWise also leads on update cadence (every 4 weeks 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. Plain sells 3 in-app purchases, starting at $4.99 per 7 days and KeyWise sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Plain ships an update every 4 months, KeyWise every 4 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Plain | KeyWise |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (29 ratings)](https://appshunter.io/ios/app/keywise-ai-keyboard-and-writer/id6468307637/reviews)** |
| Number of ratings | — | **29** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 26 MB | 78 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MOBIVERSITE YAZILIM BILISIM REKLAM VE DANISMANLIK HIZMETLERI SANAYI TICARET LIMITED STI](https://appshunter.io/developer/968440561) | [Owl Apps LLC](https://appshunter.io/developer/1395829805) |

## What reviewers say

### 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 |


### KeyWise

[App page](https://appshunter.io/ios/app/keywise-ai-keyboard-and-writer/id6468307637)

Enhance your writing with an intelligent AI keyboard. It offers grammar and spell checking, translation, tone adjustment, paraphrasing, and instant AI-powered answers. Unlock full potential with a premium subscription.

**Highlights:** Grammar & Spell Check, Real-time Translation, AI-powered Q&A, Tone Adjustment, Paraphrasing Tool, Auto-Reply Suggestions, Text Continuation

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $14.99 | per month |
| Yearly | $59.99 | per year |


## Frequently asked questions

### Is Plain free?

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

### Is KeyWise free?

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

### Do Plain or KeyWise have ads?

Neither Plain nor KeyWise shows ads.

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

Plain ships an update every 4 months, and KeyWise every 4 weeks. Most recently, Plain was updated on November 3, 2026 and KeyWise on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*