# Complete Physio vs Opus Biological

The clearest difference is update cadence: Opus Biological at every 4 weeks against Complete Physio's every 2 months. Opus Biological also leads on iOS requirement (15.1 vs 18.0). 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.

Complete Physio ships an update every 2 months, Opus Biological every 4 weeks. The most recent releases landed on September 10, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | Complete Physio | Opus Biological |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Size | 123 MB | 38 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Complete Physio Limited](https://appshunter.io/developer/1687676674) | [Opus Biological Limited](https://appshunter.io/developer/1805940312) |

## What reviewers say

### Complete Physio

[App page](https://appshunter.io/ios/app/complete-physio/id6449094381)

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

**In-app purchases:** none


### Opus Biological

[App page](https://appshunter.io/ios/app/opus-biological/id6744073119)

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

**In-app purchases:** none


## Frequently asked questions

### Is Complete Physio free?

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

### Is Opus Biological free?

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

### Do Complete Physio or Opus Biological have ads?

Neither Complete Physio nor Opus Biological shows ads.

### Which is updated more often, Complete Physio or Opus Biological?

Complete Physio ships an update every 2 months, and Opus Biological every 4 weeks. Most recently, Complete Physio was updated on September 10, 2026 and Opus Biological on August 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.*