# Proofreader vs Grammar Checker AI

The clearest difference is rating: Grammar Checker AI at 4.9 against Proofreader's 4.3. Grammar Checker AI also leads on ads (none vs shown) and update cadence (weekly vs every 3 months). 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 Grammar Checker AI sells 8 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Grammar Checker AI holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 20 and 41 respectively.

Proofreader ships an update every 3 months, Grammar Checker AI weekly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Proofreader | Grammar Checker AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (20 ratings)](https://appshunter.io/ios/app/proofreader-grammar-check/id6470146792/reviews) | **[4.9 (41 ratings)](https://appshunter.io/ios/app/grammar-checker-ai-grammar-plus/id6572300389/reviews)** |
| Number of ratings | 20 | **41** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 7 MB | 71 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Arda Sen](https://appshunter.io/developer/1670665250) | [Aleksei Khaliapin](https://appshunter.io/developer/1739805597) |

## 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 |


### Grammar Checker AI

[App page](https://appshunter.io/ios/app/grammar-checker-ai-grammar-plus/id6572300389)

This AI-powered tool enhances your writing by detecting and correcting grammar, spelling, and punctuation errors. It offers real-time feedback and style suggestions to ensure your text is clear, correct, and compelling for any purpose.

**Highlights:** Real-time grammar and spell checking, AI-powered text correction, Sentence structure analysis, Punctuation and capitalization fixes, Style suggestions for clarity, Offline basic checks

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Weekly | $5.99 | per 7 days |
| Premium Access | $6.99 | per 7 days |
| Basic Monthly | $9.99 | per month |
| Premium Access | $9.99 | per month |
| Basic Annual Limited Offer | $29.99 | per year |
| Premium Access Special Offer | $29.99 | per year |
| Premium Access | $39.99 | per year |
| Basic Annual | $49.99 | per year |


## Frequently asked questions

### Is Proofreader free?

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

### Is Grammar Checker AI free?

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

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

Grammar Checker AI is rated higher. Proofreader averages 4.3 out of 5 from 20 ratings, while Grammar Checker AI averages 4.9 from 41 ratings.

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

Proofreader shows ads; Grammar Checker AI does not.

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

Proofreader ships an update every 3 months, and Grammar Checker AI weekly. Most recently, Proofreader was updated on November 3, 2026 and Grammar Checker AI on November 4, 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.*