# SelfTrack vs Proofreader AI Grammar Checker

The clearest difference is in-app purchases: SelfTrack at none against Proofreader AI Grammar Checker's 11. SelfTrack also leads on iOS requirement (11 vs 16.6). Proofreader AI Grammar Checker's advantage is update cadence (fortnightly vs every 6 weeks). On price, 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. SelfTrack asks for nothing beyond the download.

SelfTrack ships an update every 6 weeks, Proofreader AI Grammar Checker fortnightly. The most recent releases landed on September 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SelfTrack | Proofreader AI Grammar Checker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (3.3K ratings)](https://appshunter.io/ios/app/proofreader-ai-grammar-checker/id1494119626/reviews)** |
| Number of ratings | — | **3.3K** |
| Positive reviews | — | 64.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 41 MB | 59 MB |
| Requires iOS | **11** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [M2M DATA GROUP LIMITED](https://appshunter.io/developer/1425847555) | [BlueSoar SL](https://appshunter.io/developer/1493410779) |

## What reviewers say

### SelfTrack

[App page](https://appshunter.io/ios/app/selftrack/id1272609757)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is SelfTrack free?

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

### Is Proofreader AI Grammar Checker free?

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

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

Neither SelfTrack nor Proofreader AI Grammar Checker shows ads.

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

SelfTrack ships an update every 6 weeks, and Proofreader AI Grammar Checker fortnightly. Most recently, SelfTrack was updated on September 14, 2026 and Proofreader AI Grammar Checker on October 13, 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.*