# Workout Data vs Onus

The clearest difference is in-app purchases: Workout Data at none against Onus's 2. Onus's advantage is update cadence (weekly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Onus sells 2 in-app purchases, starting at $4.99 per month. Workout Data asks for nothing beyond the download.

Workout Data ships an update every 3 months, Onus weekly. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Workout Data | Onus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Size | 8 MB | 49 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Piryon Enterprises LLC](https://appshunter.io/developer/1575432951) | [Calvin Thurman](https://appshunter.io/developer/1866289953) |

## What reviewers say

### Workout Data

[App page](https://appshunter.io/ios/app/workout-data/id6443803027)

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

**In-app purchases:** none


### Onus

[App page](https://appshunter.io/ios/app/onus-ai-accountability/id6769054852)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Onus Pro Monthly | $4.99 | per month |
| Streak Restore | $0.99 | one-time |


## Frequently asked questions

### Is Workout Data free?

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

### Is Onus free?

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

### Do Workout Data or Onus have ads?

Neither Workout Data nor Onus shows ads.

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

Workout Data ships an update every 3 months, and Onus weekly. Most recently, Workout Data was updated on October 11, 2026 and Onus on October 13, 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.*