# Proofreader vs AI Grammar Checker

The clearest difference is ads: AI Grammar Checker at none against Proofreader's shown. AI Grammar Checker also leads on rating (4.5 vs 4.3) and update cadence (every 2 months vs every 3 months). Proofreader's advantage is device support (3 vs 1). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. Proofreader sells 2 in-app purchases, starting at $9.99 per month and AI Grammar Checker sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

AI Grammar Checker holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 20 and 27 respectively.

Proofreader ships an update every 3 months, AI Grammar Checker every 2 months. The most recent releases landed on October 30, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Proofreader | AI Grammar Checker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (20 ratings)](https://appshunter.io/ios/app/proofreader-grammar-check/id6470146792/reviews) | **[4.5 (27 ratings)](https://appshunter.io/ios/app/ai-grammar-checker-rewrite/id6470382843/reviews)** |
| Number of ratings | 20 | **27** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 7 MB | 6 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | +4 |
| Developer | [Arda Sen](https://appshunter.io/developer/1670665250) | [Arpit Roy](https://appshunter.io/developer/1582461051) |

## What reviewers say

### Proofreader

[App page](https://appshunter.io/ios/app/proofreader-grammar-check/id6470146792)

Enhance your writing with an AI-powered tool that detects and corrects grammar, spelling, and punctuation errors. Achieve clear, concise, and error-free communication for emails, reports, and essays. Supports multiple languages with a user-friendly interface.

**Highlights:** Advanced grammar and spelling check, AI-driven error correction, User-friendly interface, Multiple language support, Privacy and security focused

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $29.99 | per year |


### 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 Proofreader free?

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

### Is AI Grammar Checker free?

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

### Which has better reviews, Proofreader or AI Grammar Checker?

AI Grammar Checker is rated higher. Proofreader averages 4.3 out of 5 from 20 ratings, while AI Grammar Checker averages 4.5 from 27 ratings.

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

Proofreader shows ads; AI Grammar Checker does not.

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

Proofreader ships an update every 3 months, and AI Grammar Checker every 2 months. Most recently, Proofreader was updated on October 30, 2026 and AI Grammar Checker on November 3, 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.*