# StudyArena vs ZenFocus

The clearest difference is in-app purchases: StudyArena at none against ZenFocus's 4. ZenFocus's advantage is ads (none vs shown) and update cadence (every 4 days vs monthly). On price and device support there is nothing between them.

Both are free to download. ZenFocus sells 4 in-app purchases, starting at $1.99 per month. StudyArena asks for nothing beyond the download.

StudyArena ships an update monthly, ZenFocus every 4 days. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | StudyArena | ZenFocus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 4 days** |
| Size | 23 MB | 62 MB |
| Requires iOS | 18.5 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Yasuhiro Ogawa](https://appshunter.io/developer/1819699862) | [SUHEE BYUN](https://appshunter.io/developer/6775685890) |

## What reviewers say

### StudyArena

[App page](https://appshunter.io/ios/app/studyarena/id6748235227)

**Features:** macOS Compatibility

**In-app purchases:** none


### ZenFocus

[App page](https://appshunter.io/ios/app/zenfocus-true-study-time/id6775685888)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 찐공 베이직 | $1.99 | per month |
| 찐공 프리미엄 | $2.99 | per month |
| 찐공 베이직 | $17.99 | per year |
| 찐공 프리미엄 | $29.99 | per year |


## Frequently asked questions

### Is StudyArena free?

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

### Is ZenFocus free?

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

### Do StudyArena or ZenFocus have ads?

StudyArena shows ads; ZenFocus does not.

### Which is updated more often, StudyArena or ZenFocus?

StudyArena ships an update monthly, and ZenFocus every 4 days. Most recently, StudyArena was updated on October 2, 2026 and ZenFocus on October 3, 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.*