E vs eCOA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E
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蓝牙沙发，一键控制，支持单个与群组集群控制，全球顶级的软体沙发供应商。
eCOA
This app facilitates real-time patient feedback collection during clinical trials. It streamlines the process of gathering accurate patient input to speed up drug development, offering features like easy login and timely reminders.
- Real-time patient feedback
- Clinical trial data collection
- Patient-centered design
- Easy login
- User training
- Scale completion
- Timely reminders
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eCOA is a patient-centered app from EClinCloud designed to capture and track real-time patient feedback during clinical trials. It simplifies the collection of accurate, direct patient input, helping to accelerate drug development. Key features include easy login, user training, scale completion, and timely reminders, making it straightforward and convenient for patients to share their trial experiences.
Screenshots
Verdict
The clearest difference is update cadence: eCOA at monthly against E's every 19 months. E's advantage is iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases and device support 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.
E ships an update every 19 months, eCOA monthly. The most recent releases landed on September 24, 2026 and October 2, 2026 respectively.
| Parameter | E | eCOA |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 19 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 15 MB | 69 MB |
| Age rating | 4+ | 17+ |
| Developer | 国强 张 | EClinCloud (Shenzhen) Technology Co., Ltd |
In-app purchases
E
No in-app purchases
eCOA
No in-app purchases
