# Grammar AI Checker vs AI Grammar Check

The clearest difference is update cadence: Grammar AI Checker at every 5 days against AI Grammar Check's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Grammar AI Checker sells 3 in-app purchases, starting at $4.99 per 7 days and AI Grammar Check sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Grammar AI Checker ships an update every 5 days, AI Grammar Check every 3 weeks. The most recent releases landed on September 21, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Grammar AI Checker | AI Grammar Check |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 16 MB | 31 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Zubair](https://appshunter.io/developer/1802731328) | [Amina Sehar](https://appshunter.io/developer/1823051162) |

## What reviewers say

### Grammar AI Checker

[App page](https://appshunter.io/ios/app/grammar-ai-checker-correctify/id6745131479)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Grammar Checker Weekly | $4.99 | per 7 days |
| AI Grammar Checker Monthly | $6.99 | per month |
| AI Grammar Checker Yearly | $19.99 | per year |


### AI Grammar Check

[App page](https://appshunter.io/ios/app/ai-grammar-check-corrector/id6760130507)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $6.99 | per month |
| Yearly | $28.99 | per year |


## Frequently asked questions

### Is Grammar AI Checker free?

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

### Is AI Grammar Check free?

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

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

Neither Grammar AI Checker nor AI Grammar Check shows ads.

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

Grammar AI Checker ships an update every 5 days, and AI Grammar Check every 3 weeks. Most recently, Grammar AI Checker was updated on September 21, 2026 and AI Grammar Check on September 8, 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.*