# Fusion ePRO vs TrackYourStress

The clearest difference is update cadence: Fusion ePRO at every 2 months against TrackYourStress's every 5 months. 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.

Fusion ePRO ships an update every 2 months, TrackYourStress every 5 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Fusion ePRO | TrackYourStress |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (6 ratings)](https://appshunter.io/ios/app/fusion-epro/id1285191348/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | — |
| Size | 41 MB | 25 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Andrew Schachter16680315703](https://appshunter.io/developer/1285191347) | [Universitaetsklinikum Wuerzburg](https://appshunter.io/developer/1519399355) |

## What reviewers say

### Fusion ePRO

[App page](https://appshunter.io/ios/app/fusion-epro/id1285191348)

This app facilitates the real-time collection of patient data for clinical studies. It supports complex diary entries with smart checks and controlled time windows for accurate information gathering. Data syncs seamlessly into your overall clinical data management.

**Highlights:** Real-time patient data collection, Complex diary question capture, Smart checks for data accuracy, Controlled diary time windows, Easy synchronization of data

**Features:** macOS Compatibility

**In-app purchases:** none


### TrackYourStress

[App page](https://appshunter.io/ios/app/trackyourstress/id1604145024)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fusion ePRO free?

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

### Is TrackYourStress free?

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

### Do Fusion ePRO or TrackYourStress have ads?

Neither Fusion ePRO nor TrackYourStress shows ads.

### Which is updated more often, Fusion ePRO or TrackYourStress?

Fusion ePRO ships an update every 2 months, and TrackYourStress every 5 months. Most recently, Fusion ePRO was updated on November 3, 2026 and TrackYourStress on November 3, 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.*