# Unify Trials vs YPrime

The clearest difference is rating: YPrime at 5.0 against Unify Trials's 4.0. YPrime also leads on update cadence (every 3 weeks vs every 2 months). Unify Trials's advantage is ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

YPrime holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Unify Trials ships an update every 2 months, YPrime every 3 weeks. The most recent releases landed on October 18, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Unify Trials | YPrime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (3 ratings)](https://appshunter.io/ios/app/unify-trials/id1601452307/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/yprime/id1659475338/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 195 MB | 110 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Evinova](https://appshunter.io/developer/1776852530) | [Y-Prime](https://appshunter.io/developer/872635320) |

## What reviewers say

### Unify Trials

[App page](https://appshunter.io/ios/app/unify-trials/id1601452307)

This app supports clinical trial participants with information and reminders for trial tasks. It offers layman's explanations of diseases and trials, and allows data submission via questionnaires and connected devices approved in the US and EU.

**Highlights:** Clinical trial support, Task reminders, Disease and trial information, Health questionnaire data submission, Connected device data collection (US/EU)

**In-app purchases:** none


### YPrime

[App page](https://appshunter.io/ios/app/yprime/id1659475338)

Manage your clinical study tasks conveniently from your personal device. Log in using your enrollment ID to complete training and stay connected to your study activities, fitting them into your daily schedule.

**Highlights:** Log in and review study tasks, Complete clinical study activities, Manage tasks at your own pace, Stay connected to your study, Use on personal devices

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

**In-app purchases:** none


## Frequently asked questions

### Is Unify Trials free?

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

### Is YPrime free?

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

### Which has better reviews, Unify Trials or YPrime?

YPrime is rated higher. Unify Trials averages 4.0 out of 5 from 3 ratings, while YPrime averages 5.0 from 1 ratings.

### Do Unify Trials or YPrime have ads?

Neither Unify Trials nor YPrime shows ads.

### Which is updated more often, Unify Trials or YPrime?

Unify Trials ships an update every 2 months, and YPrime every 3 weeks. Most recently, Unify Trials was updated on October 18, 2026 and YPrime on October 21, 2026.

---

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