# O3 Class vs IEC Teacher App

The clearest difference is in-app purchases: IEC Teacher App at none against O3 Class's 3. O3 Class's advantage is device support and iOS requirement (12.0 vs 14.0). On price there is nothing between them.

Both are free to download. O3 Class sells 3 one-off in-app purchases. IEC Teacher App asks for nothing beyond the download.

## The numbers

| Metric | O3 Class | IEC Teacher App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 6 weeks | — |
| Size | 51 MB | 19 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 17+ | 4+ |
| Developer | [Moments Telecomedia](https://appshunter.io/developer/417054091) | [The Solutions Unit (TSU) / Part of Shnoudi Trading Co. (STC)](https://appshunter.io/developer/796964392) |

## What reviewers say

### O3 Class

[App page](https://appshunter.io/ios/app/o3-class/id1627995167)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Adobe Photoshop | $59.99 | one-time |
| Adobe Premiere | $59.99 | one-time |
| Photography Course | $79.99 | one-time |


### IEC Teacher App

[App page](https://appshunter.io/ios/app/iec-teacher-app/id6463510839)

**In-app purchases:** none


## Frequently asked questions

### Is O3 Class free?

O3 Class is free to download, with in-app purchases available.

### Is IEC Teacher App free?

IEC Teacher App is free to download, with no in-app purchases.

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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.*