# CheckPlate vs AI Grammar Checker

The clearest difference is in-app purchases: CheckPlate at none against AI Grammar Checker's 3. CheckPlate also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.0). On price, update cadence and ads there is nothing between them.

Both are free to download. AI Grammar Checker sells 3 in-app purchases, starting at $3.99 per 7 days. CheckPlate asks for nothing beyond the download.

CheckPlate ships an update every 5 weeks, AI Grammar Checker every 2 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CheckPlate | AI Grammar Checker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (27 ratings)](https://appshunter.io/ios/app/ai-grammar-checker-rewrite/id6470382843/reviews)** |
| Number of ratings | — | **27** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 153 MB | 6 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Coeus Software Ltd](https://appshunter.io/developer/1644861668) | [Arpit Roy](https://appshunter.io/developer/1582461051) |

## What reviewers say

### CheckPlate

[App page](https://appshunter.io/ios/app/checkplate/id1664069448)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Grammar Checker

[App page](https://appshunter.io/ios/app/ai-grammar-checker-rewrite/id6470382843)

Instantly correct grammar, spelling, and punctuation errors. Enhance text clarity, eliminate mistakes, and refine your writing with AI-powered accuracy. Learn from corrections to improve your language skills.

**Highlights:** Instant grammar, spelling, and punctuation correction, Sentence clarity and structure improvement, Multilingual writing support (50+ languages), Readability analysis for clear text, Explanations for learning from corrections

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sentence Corrector | $3.99 | per 7 days |
| Sentence Corrector | $4.99 | per month |
| Sentence Corrector | $29.99 | per year |


## Frequently asked questions

### Is CheckPlate free?

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

### Is AI Grammar Checker free?

AI Grammar Checker is free to download, with in-app purchases available.

### Do CheckPlate or AI Grammar Checker have ads?

Neither CheckPlate nor AI Grammar Checker shows ads.

### Which is updated more often, CheckPlate or AI Grammar Checker?

CheckPlate ships an update every 5 weeks, and AI Grammar Checker every 2 months. Most recently, CheckPlate was updated on October 19, 2026 and AI Grammar Checker on October 24, 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.*