# Just Focus Timer vs Habit Tracker Grid Boost

The clearest difference is in-app purchases: Just Focus Timer at none against Habit Tracker Grid Boost's 1. Just Focus Timer also leads on ads (none vs shown). Habit Tracker Grid Boost's advantage is update cadence (every 3 days vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Habit Tracker Grid Boost sells 1 in-app purchase, starting at $11.99 per year. Just Focus Timer asks for nothing beyond the download.

Just Focus Timer ships an update every 4 months, Habit Tracker Grid Boost every 3 days. The most recent releases landed on September 20, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Just Focus Timer | Habit Tracker Grid Boost |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 days** |
| Size | 24 MB | 11 MB |
| Requires iOS | 17.5 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Civan Korkmaz](https://appshunter.io/developer/1725275668) | [Sharepeace, LLC](https://appshunter.io/developer/1463151538) |

## What reviewers say

### Just Focus Timer

[App page](https://appshunter.io/ios/app/just-focus-timer/id6478323264)

**Features:** macOS Compatibility

**In-app purchases:** none


### Habit Tracker Grid Boost

[App page](https://appshunter.io/ios/app/habit-tracker-grid-boost/id6504722090)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $11.99 | per year |


## Frequently asked questions

### Is Just Focus Timer free?

Just Focus Timer is free to download, with no in-app purchases.

### Is Habit Tracker Grid Boost free?

Habit Tracker Grid Boost is free to download, with in-app purchases available.

### Do Just Focus Timer or Habit Tracker Grid Boost have ads?

Habit Tracker Grid Boost shows ads; Just Focus Timer does not.

### Which is updated more often, Just Focus Timer or Habit Tracker Grid Boost?

Just Focus Timer ships an update every 4 months, and Habit Tracker Grid Boost every 3 days. Most recently, Just Focus Timer was updated on September 20, 2026 and Habit Tracker Grid Boost on September 17, 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.*