# Zenmeesters vs Trainen bij OO

Zenmeesters and Trainen bij OO are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Zenmeesters ships an update every 2 months, Trainen bij OO every 3 months. The most recent releases landed on November 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Zenmeesters | Trainen bij OO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 83 MB | 15 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Zenmeesters](https://appshunter.io/developer/1890136558) | [Trainin](https://appshunter.io/developer/1732652497) |

## What reviewers say

### Zenmeesters

[App page](https://appshunter.io/ios/app/zenmeesters/id1631319639)

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

**In-app purchases:** none


### Trainen bij OO

[App page](https://appshunter.io/ios/app/trainen-bij-oo/id6762283315)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zenmeesters free?

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

### Is Trainen bij OO free?

Trainen bij OO is free to download, with no in-app purchases.

### Do Zenmeesters or Trainen bij OO have ads?

Neither Zenmeesters nor Trainen bij OO shows ads.

### Which is updated more often, Zenmeesters or Trainen bij OO?

Zenmeesters ships an update every 2 months, and Trainen bij OO every 3 months. Most recently, Zenmeesters was updated on November 7, 2026 and Trainen bij OO on October 28, 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.*