# Sky Schools vs O

The clearest difference is update cadence: O at fortnightly against Sky Schools's every 2 months. Sky Schools's advantage is iOS requirement (12.0 vs 15.6). On price, ads, 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.

Sky Schools ships an update every 2 months, O fortnightly. The most recent releases landed on June 2, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Sky Schools | O |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 208 MB | 68 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pioneers Solutions](https://appshunter.io/developer/1492903229) | [mohamed elhendy](https://appshunter.io/developer/1848572319) |

## What reviewers say

### Sky Schools

[App page](https://appshunter.io/ios/app/sky-schools/id6499494341)

**Features:** macOS Compatibility

**In-app purchases:** none


### O

[App page](https://appshunter.io/ios/app/o-learn/id6754511188)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sky Schools free?

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

### Is O free?

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

### Do Sky Schools or O have ads?

Neither Sky Schools nor O shows ads.

### Which is updated more often, Sky Schools or O?

Sky Schools ships an update every 2 months, and O fortnightly. Most recently, Sky Schools was updated on June 2, 2026 and O 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.*