YPrime eCOA vs Atom5
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
YPrime eCOA
Access clinical study questionnaires on your personal device. Use your enrollment ID to log in and complete required training. The app reminds you of upcoming questionnaires based on your visit schedule, ensuring compliance with study requirements.
- Access study questionnaires
- Personal device access
- Enrollment ID login
- Study-specific questionnaires
- Visit schedule reminders
- Compliance tracking
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Access study participant questionnaires easily and with minimal day to day disruption by downloading this app on your personal device. Using the enrollment ID provided by your medical professional, create your unique login code and complete your training to begin. The available questionnaires will be specific to your clinical study and the YPrime eCOA application will remind you when the questionnaires need to be completed based off your visit schedule. Use this app to meet clinical study questionnaire completion and compliance requirements.
Atom5
This platform enables remote patient monitoring for various medical conditions, collecting data to quantify patient well-being and treatment response. It offers new outcome measures for assessing how patients feel, function, and react to therapies.
- Remote patient monitoring
- Digital endpoint data collection
- Quantifies patient well-being
- Measures treatment response
- Outcome measures for patient function
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Atom5™ is a digital platform originally designed for paediatric and rare disease remote patient monitoring, but as Aparito has grown has been deployed in a wide range of adult and other patient areas. Data on digital endpoints quantify how a patient feels, functions and responds to treatment with new outcome measures.
Screenshots
Verdict
The clearest difference is rating: YPrime eCOA at 2.8 against Atom5's 2.2. YPrime eCOA also leads on iOS requirement (12.0 vs 15.5). Atom5's advantage is review sentiment (40% vs 13%). 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.
YPrime eCOA holds the better App Store score, 2.8 against 2.2. Both are backed by a comparable volume of ratings — 14 and 13 respectively. Written reviews complicate that: 13% of YPrime eCOA's written reviews are positive against 40% of Atom5's, so the app with the better star average is not the one people write more warmly about.
YPrime eCOA ships an update every 2 months, Atom5 monthly. The most recent releases landed on June 10, 2026 and August 24, 2026 respectively.
| Parameter | YPrime eCOA | Atom5 |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (14 ratings) — better | 2.2 (13 ratings) |
| Positive reviews | 12.5% of reviews | 40.0% of reviews — better |
| Number of ratings | 14 — better | 13 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 131 MB | 101 MB |
| Age rating | 4+ | 12+ |
| Developer | Y-PRIME TECHNOLOGIES, LLC | Aparito Ltd |
Customer experience
YPrime eCOA
Atom5
In-app purchases
YPrime eCOA
No in-app purchases
Atom5
No in-app purchases
