# Grammar Checker vs Raid

The clearest difference is update cadence: Raid at every 2 weeks against Grammar Checker's every 9 months. Grammar Checker's advantage is iOS requirement (13.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Grammar Checker ships an update every 9 months, Raid every 2 weeks. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Grammar Checker | Raid |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 weeks** |
| Size | 29 MB | 67 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Abdul Rehman](https://appshunter.io/developer/1606519308) | [Minmi Kim](https://appshunter.io/developer/6796187817) |

## What reviewers say

### Grammar Checker

[App page](https://appshunter.io/ios/app/grammar-checker-prepostseo/id1672966212)

**Features:** macOS Compatibility

**In-app purchases:** none


### Raid

[App page](https://appshunter.io/ios/app/raid-group-focus-app/id6797185521)

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

**In-app purchases:** none


## Frequently asked questions

### Is Grammar Checker free?

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

### Is Raid free?

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

### Do Grammar Checker or Raid have ads?

Neither Grammar Checker nor Raid shows ads.

### Which is updated more often, Grammar Checker or Raid?

Grammar Checker ships an update every 9 months, and Raid every 2 weeks. Most recently, Grammar Checker was updated on October 1, 2026 and Raid on October 14, 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.*