Patient Cloud vs SmartSignals® eCOA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Patient Cloud
This app streamlines patient engagement and data collection for clinical trials. It allows patients to easily participate in studies by answering questionnaires on their mobile devices, while healthcare professionals and researchers can manage invitations and access real-time data.
- ePRO, ClinRO, and site mode functionality
- Patient engagement and data management
- Clinical trial participation via mobile
- Questionnaire completion from home
- Patient invitation and health data collection
- Integration with Medidata Rave
Read full descriptionHide full description
Medidata Patient Cloud eCOA provides a single app for ePRO, ClinROs and site mode functionality to better integrate workflows. It changes the information flow and management of patient engagement for patients, clinical researchers, and healthcare professionals. A single app for all users enables clinicians and investigators to assist patients with accessing PRO instruments where appropriate. Patients: Download Patient Cloud eCOA app for free, receive an invitation from your doctor and you can participate in a clinical trial — it's that easy! Patient Cloud eCOA lets you answer clinical trial questionnaires from the comfort of your own home, or wherever is convenient for you. Healthcare professionals: Patient Cloud eCOA allows you to invite patients to your studies and have them provide health data using their mobile devices. Patient Cloud eCOA simplifies the patient reported component of your clinical trials. Clinical Researchers: Patient Cloud eCOA is part of the Medidata platform, including Medidata Rave®. It frees you from reliance on proprietary devices and reduces study setup time and effort. By leveraging Rave, you can build your own questionnaires and easily make them available for patients. Entered data is accessible to you and your partners immediately. As part of the Medidata platform, the full functionality of the platform is at your fingertips. Contact Medidata Solutions today to get started right away!
SmartSignals® eCOA
This app facilitates data collection from patients and caregivers in clinical trials for new medicines. It provides easy access to questionnaires, helping participants follow study protocols and ensuring data privacy.
- Patient data collection
- Caregiver data collection
- Clinical trial participation
- Questionnaire access
- Timely reminders
- Patient privacy compliance
Read full descriptionHide full description
Signant SmartSignals eCOA from Signant Health is used for collecting data from patients and caregivers in clinical Trials of new medicines. Signant SmartSignals eCOA gives patients access to specific Questionnaires, making it easy for patients to complete Wherever they go. Patients who participate in a particular clinical study get access to Signant SmartSignals eCOA for the duration of the study. The app is activated with an activation code supplied by the care personnel conducting the clinical study. Signant SmartSignals eCOA, with its easy-to-use interface and timely reminders, will help patients follow the study protocol, making their trial experience a Vital part of the data collected. Signant SmartSignals eCOA provides patient privacy and anonymity throughout their clinical trial participation. The app complies with international regulations and laws for patient privacy.
Screenshots
Verdict
The clearest difference is rating: SmartSignals® eCOA at 5.0 against Patient Cloud's 2.6. Patient Cloud's advantage is ratings volume (113 vs 2). On price, update cadence, ads and in-app purchases 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.
SmartSignals® eCOA holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: Patient Cloud has 113 ratings behind it against 2, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.
| Parameter | Patient Cloud | SmartSignals® eCOA |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (113 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 6.7% of reviews | — |
| Number of ratings | 113 — better | 2 |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 95 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Medidata Solutions Worldwide | Signant Health Oy |
Customer experience
Patient Cloud
SmartSignals® eCOA
In-app purchases
Patient Cloud
No in-app purchases
SmartSignals® eCOA
No in-app purchases
Questions
Is Patient Cloud free?
Is SmartSignals® eCOA free?
Which has better reviews, Patient Cloud or SmartSignals® eCOA?
Do Patient Cloud or SmartSignals® eCOA have ads?
Which is updated more often, Patient Cloud or SmartSignals® eCOA?
Other comparisons















