# Focus vs SubAtomic

The clearest difference is update cadence: SubAtomic at every 4 days against Focus's every 11 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Focus sells 2 in-app purchases, starting at $6.99 per month and SubAtomic sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Focus ships an update every 11 days, SubAtomic every 4 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Focus | SubAtomic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 4 days** |
| Size | 29 MB | 74 MB |
| Requires iOS | **17.0** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ELIF ERDENK](https://appshunter.io/developer/1864153979) | [sinasamaki](https://appshunter.io/developer/1838309385) |

## What reviewers say

### Focus

[App page](https://appshunter.io/ios/app/focus-d-pomodoro-study-timer/id6757014988)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $6.99 | per month |
| Yearly Premium | $29.99 | per year |


### SubAtomic

[App page](https://appshunter.io/ios/app/subatomic-habit-tracker/id6812532289)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SubAtomic Pro | $1.99 | per month |
| SubAtomic Pro - Yearly | $19.99 | per year |
| SubAtomic Pro: One-time purchase | $8.99 | one-time |


## Frequently asked questions

### Is Focus free?

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

### Is SubAtomic free?

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

### Do Focus or SubAtomic have ads?

Neither Focus nor SubAtomic shows ads.

### Which is updated more often, Focus or SubAtomic?

Focus ships an update every 11 days, and SubAtomic every 4 days. Most recently, Focus was updated on October 31, 2026 and SubAtomic on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*