Fusion ePRO vs Linus Tester
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fusion ePRO
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.
- Real-time patient data collection
- Complex diary question capture
- Smart checks for data accuracy
- Controlled diary time windows
- Easy synchronization of data
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Sitero Fusion eClinical Suite’s Mobile ePRO enables the collection of real-time patient data from subjects in your clinical study. Capabilities include the ability to capture simple to complex diary questions, smart checks for accurate information, controlled diary windows, limiting the diary to a specific time window, and easy synchronization of the diary data into your overall clinical data.
Linus Tester
This platform collects extensive digital measurements related to brain health, including voice, speech, gait, cognition, and eye movement. It uses machine learning to analyze this data alongside electronic health records, creating precise metrics for evaluating interventions and personalizing brain health recommendations.
- Digital measurement collection
- Voice and speech analysis
- Gait and cognition tracking
- Eye movement monitoring
- Machine learning data analysis
- Electronic health record integration
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The Linus platform allows the coordinated collection of large amounts of information about digital measurements—such as voice, speech, gait, cognition and eye movement—that may have a bearing on brain health and lead to the identification of digital biomarkers. Applying machine learning methods of data analysis to this rich set of measurements, together with information drawn from electronic health records, provides a composite picture with more precise metrics for evaluating the impact of potential interventions and lifestyle changes, and for offering personalized prescriptions to promote brain health.
Screenshots
Verdict
The clearest difference is rating: Linus Tester at 3.0 against Fusion ePRO's 2.8. Fusion ePRO's advantage is iOS requirement (12.0 vs 15.6). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Linus Tester holds the better App Store score, 3.0 against 2.8. Both are backed by a comparable volume of ratings — 6 and 4 respectively.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on June 1, 2026 and June 7, 2026 respectively.
| Parameter | Fusion ePRO | Linus Tester |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (6 ratings) | 3.0 (4 ratings) — better |
| Number of ratings | 6 — better | 4 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 41 MB | 202 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Schachter16680315703 | Linus Health, Inc. |
Customer experience
Fusion ePRO
Linus Tester
In-app purchases
Fusion ePRO
No in-app purchases
Linus Tester
No in-app purchases
