# Deep Focus vs Grammar Fix

The clearest difference is update cadence: Deep Focus at every 3 weeks against Grammar Fix's every 3 months. Deep Focus also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Deep Focus sells 2 in-app purchases, starting at $2.99 per month and Grammar Fix sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Deep Focus ships an update every 3 weeks, Grammar Fix every 3 months. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Deep Focus | Grammar Fix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 63 MB | 2 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Andrii Vikuk](https://appshunter.io/developer/1828931833) | [APPCITY Limited Liability Company](https://appshunter.io/developer/1534242389) |

## What reviewers say

### Deep Focus

[App page](https://appshunter.io/ios/app/deep-focus-adhd-timer/id6749152408)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Focus Minima Premium Monthly | $2.99 | per month |
| Focus Minima Premium Annual | $7.99 | per year |


### Grammar Fix

[App page](https://appshunter.io/ios/app/grammar-fix/id6780668610)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GrammarFix Premium Monthly | $4.99 | per month |
| GrammarFix Premium Yearly | $29.99 | per year |
| GrammarFix Premium Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Deep Focus free?

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

### Is Grammar Fix free?

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

### Do Deep Focus or Grammar Fix have ads?

Neither Deep Focus nor Grammar Fix shows ads.

### Which is updated more often, Deep Focus or Grammar Fix?

Deep Focus ships an update every 3 weeks, and Grammar Fix every 3 months. Most recently, Deep Focus was updated on October 6, 2026 and Grammar Fix 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.*