# onsim vs Zone2Be

The clearest difference is update cadence: onsim at weekly against Zone2Be's fortnightly. onsim also leads on iOS requirement (16.0 vs 18.5). 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.

onsim ships an update weekly, Zone2Be fortnightly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | onsim | Zone2Be |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Size | 82 MB | 122 MB |
| Requires iOS | **16.0** | 18.5 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 17+ | 17+ |
| Developer | [에이치비커넥트](https://appshunter.io/developer/1744133787) | [chang hyeok kang](https://appshunter.io/developer/1640264810) |

## What reviewers say

### onsim

[App page](https://appshunter.io/ios/app/onsim-exercise-to-your-rhythm/id6480011843)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### Zone2Be

[App page](https://appshunter.io/ios/app/zone2be/id6748695230)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is onsim free?

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

### Is Zone2Be free?

Zone2Be is free to download, with no in-app purchases.

### Do onsim or Zone2Be have ads?

Neither onsim nor Zone2Be shows ads.

### Which is updated more often, onsim or Zone2Be?

onsim ships an update weekly, and Zone2Be fortnightly. Most recently, onsim was updated on October 30, 2026 and Zone2Be 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.*