# Kaizmax vs Onus Workout

The clearest difference is update cadence: Kaizmax at daily against Onus Workout's every 4 days. Kaizmax also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Kaizmax sells 3 in-app purchases, starting at $6.99 per month and Onus Workout sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

Kaizmax ships an update daily, Onus Workout every 4 days. The most recent releases landed on September 29, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Kaizmax | Onus Workout |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 4 days |
| Size | 101 MB | 34 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Maxime DERACHE](https://appshunter.io/developer/1886984275) | [Maxime Barbeau](https://appshunter.io/developer/1882804417) |

## What reviewers say

### Kaizmax

[App page](https://appshunter.io/ios/app/kaizmax/id6791622983)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kaizmax Premium — Monthly | $6.99 | per month |
| Kaizmax Premium — Annual | $44.99 | per year |
| Kaizmax Premium — Lifetime | $129.99 | one-time |


### Onus Workout

[App page](https://appshunter.io/ios/app/onus-workout/id6793636455)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Onus Pro | $8.99 | per month |
| Onus Pro | $49.99 | per year |


## Frequently asked questions

### Is Kaizmax free?

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

### Is Onus Workout free?

Onus Workout is free to download, with in-app purchases available.

### Do Kaizmax or Onus Workout have ads?

Both Kaizmax and Onus Workout show ads.

### Which is updated more often, Kaizmax or Onus Workout?

Kaizmax ships an update daily, and Onus Workout every 4 days. Most recently, Kaizmax was updated on September 29, 2026 and Onus Workout on September 27, 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.*