# E vs O2 arena

The clearest difference is ads: E at none against O2 arena's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

E ships an update every 3 weeks, O2 arena every 2 weeks. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | E | O2 arena |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 17 MB | 160 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Audiolibrix Ltd](https://appshunter.io/developer/815879706) | [Bestsport, a.s.](https://appshunter.io/developer/1796135676) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-book-reader-readingfm/id1603304463)

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

**In-app purchases:** none


### O2 arena

[App page](https://appshunter.io/ios/app/o2-arena/id6741899116)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is O2 arena free?

O2 arena is free to download, with no in-app purchases.

### Do E or O2 arena have ads?

O2 arena shows ads; E does not.

### Which is updated more often, E or O2 arena?

E ships an update every 3 weeks, and O2 arena every 2 weeks. Most recently, E was updated on October 7, 2026 and O2 arena on October 9, 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.*