# OctaApp vs Comenius Esdoorn

The clearest difference is update cadence: OctaApp at every 3 weeks against Comenius Esdoorn's every 3 months. OctaApp also leads on iOS requirement (12.0 vs 15.1). 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.

OctaApp ships an update every 3 weeks, Comenius Esdoorn every 3 months. The most recent releases landed on September 14, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | OctaApp | Comenius Esdoorn |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 41 MB | 44 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [mPower](https://appshunter.io/developer/1542561848) | [Infowijs B.V.](https://appshunter.io/developer/1499461770) |

## What reviewers say

### OctaApp

[App page](https://appshunter.io/ios/app/octaapp/id6476868496)

**Features:** macOS Compatibility

**In-app purchases:** none


### Comenius Esdoorn

[App page](https://appshunter.io/ios/app/comenius-esdoorn/id6505094758)

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

**In-app purchases:** none


## Frequently asked questions

### Is OctaApp free?

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

### Is Comenius Esdoorn free?

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

### Do OctaApp or Comenius Esdoorn have ads?

Neither OctaApp nor Comenius Esdoorn shows ads.

### Which is updated more often, OctaApp or Comenius Esdoorn?

OctaApp ships an update every 3 weeks, and Comenius Esdoorn every 3 months. Most recently, OctaApp was updated on September 14, 2026 and Comenius Esdoorn on September 7, 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.*