# Callisthenics vs Onset Workouts

The clearest difference is price: Onset Workouts at Free against Callisthenics's $1.99. Onset Workouts also leads on update cadence (every 2 days vs every 5 weeks). Callisthenics's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Onset Workouts is free to download; Callisthenics costs $1.99 up front. Onset Workouts sells 2 in-app purchases, starting at $1.99 per month. Callisthenics asks for nothing beyond the download.

Callisthenics ships an update every 5 weeks, Onset Workouts every 2 days. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Callisthenics | Onset Workouts |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Size | 13 MB | 67 MB |
| Requires iOS | **26.2** | 26.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Maksym Khamdan](https://appshunter.io/developer/1735160613) | [Stefan Michalak](https://appshunter.io/developer/968027039) |

## What reviewers say

### Callisthenics

[App page](https://appshunter.io/ios/app/callisthenics/id6479205587)

**In-app purchases:** none


### Onset Workouts

[App page](https://appshunter.io/ios/app/onset-workouts/id6785293766)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Yearly | $19.99 | per year |


## Frequently asked questions

### Is Callisthenics free?

Callisthenics costs $1.99, with no in-app purchases.

### Is Onset Workouts free?

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

### Do Callisthenics or Onset Workouts have ads?

Onset Workouts shows ads; Callisthenics does not.

### Which is updated more often, Callisthenics or Onset Workouts?

Callisthenics ships an update every 5 weeks, and Onset Workouts every 2 days. Most recently, Callisthenics was updated on October 10, 2026 and Onset Workouts on October 17, 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.*