# GP vs YPrime eCOA

The clearest difference is update cadence: YPrime eCOA at every 2 months against GP's every 8 months. GP's advantage is iOS requirement (7.1 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GP ships an update every 8 months, YPrime eCOA every 2 months. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | GP | YPrime eCOA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.8 (14 ratings)](https://appshunter.io/ios/app/yprime-ecoa/id1521277112/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 72 MB | 131 MB |
| Requires iOS | **7.1** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [IVAN FERNANDEZ VEGA](https://appshunter.io/developer/1063335726) | [Y-Prime](https://appshunter.io/developer/872635320) |

## What reviewers say

### GP

[App page](https://appshunter.io/ios/app/gp-helper/id1063335727)

**Features:** macOS Compatibility

**In-app purchases:** none


### YPrime eCOA

[App page](https://appshunter.io/ios/app/yprime-ecoa/id1521277112)

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.

**Highlights:** Access study questionnaires, Personal device access, Enrollment ID login, Study-specific questionnaires, Visit schedule reminders, Compliance tracking

**In-app purchases:** none


## Frequently asked questions

### Is GP free?

GP is free to download, with no in-app purchases.

### Is YPrime eCOA free?

YPrime eCOA is free to download, with no in-app purchases.

### Do GP or YPrime eCOA have ads?

Neither GP nor YPrime eCOA shows ads.

### Which is updated more often, GP or YPrime eCOA?

GP ships an update every 8 months, and YPrime eCOA every 2 months. Most recently, GP was updated on October 15, 2026 and YPrime eCOA on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*