Premier Mobile ePRO vs DFengage
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Premier Mobile ePRO
This application facilitates the collection of patient-reported outcomes during clinical trials. It provides a platform for researchers to gather essential data directly from participants.
- Patient-reported outcome collection
- Clinical trial data management
- Secure data gathering
- Participant data input
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This app is used to collect patient reported outcomes during the conduct of clinical trials.
DFengage
This app streamlines electronic patient-reported outcomes (ePRO) collection for clinical research. It allows participants to easily report symptoms, complete surveys, and manage study activities from their mobile devices, both online and offline, enhancing data accuracy and participant retention.
- Effortless data collection (symptoms, outcomes, diaries, surveys)
- Online and offline data capture
- Participant reminders for timely data
- Multilingual support and personalized timing
- Secure and compliant data capture
- Integrated with DFdiscover system
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Welcome to DFengage, the ultimate solution for streamlined electronic patient-reported outcomes (ePRO) collection in clinical research. Capture data effortlessly, ditch paper diaries, streamline manual entry, and boost retention rates. Easy, Engaging Participant Experience 1. Install DFengage from the app store 2. Login to your account, provided by the research team 3. Receive a welcome message and instructions 4. Complete today’s activities 5. Receive notifications for new activities when they’re ready Revolutionize your data collection process with our intuitive mobile app designed for seamless interaction between researchers and study participants. Reduce in-person clinic visits and empower participants to report their symptoms, answer surveys, and complete questionnaire from their own device, online or offline, wherever they are. Key Features Effortless Data Collection: Collect symptoms, outcomes, diaries, and surveys via study participants' mobile devices, online or offline, reducing site staff time during in-person or phone visits. Timeliness: Participants receive reminders about new and overdue activities, ensuring timely collection of study data. Flexibility: Collect data in multiple languages, personalize activity timing, and capture multiple activities per day. Security and Compliance: Ensure secure and compliant direct data capture from study participants. Data Validation: Ensure data quality without sacrificing user-friendliness with straightforward data checks. DFdiscover Integration: Fully integrated with the DFdiscover system for a streamlined and comprehensive EDC + ePRO experience. DFengage simplifies the data collection process, empowering researchers and participants alike to contribute efficiently and effectively to clinical research. Join the forefront of innovative data collection today!
Screenshots
Verdict
The clearest difference is rating: DFengage at 5.0 against Premier Mobile ePRO's 1.9. Premier Mobile ePRO's advantage is ratings volume (19 vs 1) and iOS requirement (11.0 vs 14.4). 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.
DFengage holds the better App Store score, 5.0 against 1.9. That said, the two scores are not equally well evidenced: Premier Mobile ePRO has 19 ratings behind it against 1, so its average is the more settled of the two.
Premier Mobile ePRO ships an update every 4 months, DFengage every 2 months. The most recent releases landed on July 23, 2026 and June 23, 2026 respectively.
| Parameter | Premier Mobile ePRO | DFengage |
|---|---|---|
| Price | Free | Free |
| Rating | 1.9 (19 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 19 — better | 1 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 14.4 |
| Further details — not scored | ||
| Size | 4 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | PREMIER RESEARCH INTERNATIONAL LLC | DFNet Research, Inc. |
Customer experience
Premier Mobile ePRO
DFengage
In-app purchases
Premier Mobile ePRO
No in-app purchases
DFengage
No in-app purchases






