# YPrime eCOA vs TruLab Sample Tracker

The clearest difference is rating: TruLab Sample Tracker at 5.0 against YPrime eCOA's 2.8. YPrime eCOA's advantage is iOS requirement (12.0 vs 15.1). On price, ratings volume, update cadence and ads there is nothing between them.

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

TruLab Sample Tracker holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 14 and 11 respectively.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | YPrime eCOA | TruLab Sample Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (14 ratings)](https://appshunter.io/ios/app/yprime-ecoa/id1521277112/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/trulab-sample-tracker/id6443908394/reviews)** |
| Number of ratings | **14** | 11 |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 131 MB | 66 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Y-Prime](https://appshunter.io/developer/872635320) | [TruLab, Inc.](https://appshunter.io/developer/1533473451) |

## What reviewers say

### 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


### TruLab Sample Tracker

[App page](https://appshunter.io/ios/app/trulab-sample-tracker/id6443908394)

This application simplifies the management of biological samples for clinical trials. It provides essential sample-level metadata, making tracking and organization straightforward for researchers and medical professionals.

**Highlights:** Biological sample metadata tracking, Clinical trial support, Easy-to-use interface, Sample-level data management

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is YPrime eCOA free?

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

### Is TruLab Sample Tracker free?

TruLab Sample Tracker is free to download, with no in-app purchases.

### Which has better reviews, YPrime eCOA or TruLab Sample Tracker?

TruLab Sample Tracker is rated higher. YPrime eCOA averages 2.8 out of 5 from 14 ratings, while TruLab Sample Tracker averages 5.0 from 11 ratings.

### Do YPrime eCOA or TruLab Sample Tracker have ads?

Neither YPrime eCOA nor TruLab Sample Tracker shows ads.

### Which is updated more often, YPrime eCOA or TruLab Sample Tracker?

YPrime eCOA ships an update every 2 months, and TruLab Sample Tracker every 2 months. Most recently, YPrime eCOA was updated on October 2, 2026 and TruLab Sample Tracker on October 5, 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.*