# Proofreader AI Grammar Checker vs Bluebook

The clearest difference is review sentiment: Proofreader AI Grammar Checker at 65% against Bluebook's 14%. Proofreader AI Grammar Checker also leads on rating (4.7 vs 1.8) and ratings volume (3.3K vs 26). Bluebook's advantage is in-app purchases (none vs 11) and iOS requirement (13.0 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Proofreader AI Grammar Checker sells 8 in-app purchases, starting at $4.99 per month. Bluebook asks for nothing beyond the download.

Proofreader AI Grammar Checker holds the better App Store score, 4.7 against 1.8. That said, the two scores are not equally well evidenced: Proofreader AI Grammar Checker has 3.3K ratings behind it against 26, so its average is the more settled of the two. Written reviews point the same way: 65% of Proofreader AI Grammar Checker's written reviews are positive against 14% of Bluebook's.

Proofreader AI Grammar Checker ships an update fortnightly, Bluebook every 9 days. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Proofreader AI Grammar Checker | Bluebook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3.3K ratings)](https://appshunter.io/ios/app/proofreader-ai-grammar-checker/id1494119626/reviews)** | [1.8 (26 ratings)](https://appshunter.io/ios/app/bluebook/id1665561852/reviews) |
| Number of ratings | **3.3K** | 26 |
| Positive reviews | **64.7% of reviews** | 14.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | Freemium | **Free** |
| Size | 59 MB | 8 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BlueSoar SL](https://appshunter.io/developer/1493410779) | [nton](https://appshunter.io/developer/1643652755) |

## What reviewers say

### Proofreader AI Grammar Checker

[App page](https://appshunter.io/ios/app/proofreader-ai-grammar-checker/id1494119626)

Enhance your writing with an AI-powered keyboard and assistant. Correct grammar, spelling, and punctuation, and improve clarity and style. Generate text, rewrite sentences, and expand your vocabulary anywhere you type.

**Highlights:** AI Keyboard with one-tap proofreading, Advanced grammar, spelling, and punctuation checker, AI rewriting and paraphrasing, Text generation and vocabulary enhancement, Style and clarity improvements, Translator and dictionary

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proofreader Pro | $4.99 | per month |
| Proofreader Pro | $9.99 | per month |
| Monthly Plan | $9.99 | per month |
| Proofreader Pro | $13.49 | per 3 months |
| Proofreader Pro | $24.99 | per 3 months |
| Proofreader Pro | $39.99 | per year |
| Proofreader Pro | $47.99 | per year |
| Proofreader Pro | $49.99 | per year |

**What reviewers like**

- 🚀 Helpful grammar and writing suggestions
- 👍 Easy to use
- 💡 Affordable alternative to Grammarly
- 👍 Explains why changes are suggested
- 💡 Useful for non-native English speakers

**What reviewers complain about**

- 🐛 Inconsistent performance, sometimes misses errors
- 🔍 Limited functionality in free version
- 🔍 Subscription required for full features
- 🐛 Issues with pasting text into other apps
- 🐛 Struggles with specialized/foreign names

**Reported bugs**

- Difficulty cancelling subscriptions
- Unexpected charges during free trials
- App crashes or freezes
- Incorrect grammar/spelling corrections

**Requested features**

- Keyboard integration for easier use
- More customization options
- Improved accuracy and consistency
- Desktop/browser extension version
- Better handling of creative/informal writing styles


### Bluebook

[App page](https://appshunter.io/ios/app/bluebook/id1665561852)

This app provides guidance on using client interfaces and offers illustrations. It facilitates communication for post-transaction program usage and Q&A with operators. Clients can modify personal information and contract details within this exclusive application for smooth service delivery.

**Highlights:** Client interface guidance, Illustrations provided, Post-transaction program usage, Operator Q&A communication, Personal information changes, Contract details modification

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Proofreader AI Grammar Checker free?

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

### Is Bluebook free?

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

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

Proofreader AI Grammar Checker is rated higher. Proofreader AI Grammar Checker averages 4.7 out of 5 from 3.3K ratings, while Bluebook averages 1.8 from 26 ratings.

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

Neither Proofreader AI Grammar Checker nor Bluebook shows ads.

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

Proofreader AI Grammar Checker ships an update fortnightly, and Bluebook every 9 days. Most recently, Proofreader AI Grammar Checker was updated on October 20, 2026 and Bluebook on October 5, 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.*