# Unify Trials vs Site2Test

Unify Trials and Site2Test are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Unify Trials ships an update every 2 months, Site2Test every 3 months. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Unify Trials | Site2Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/unify-trials/id1601452307/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 195 MB | 14 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Evinova](https://appshunter.io/developer/1776852530) | [GlaxoSmithKline PLC](https://appshunter.io/developer/433740848) |

## 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


### Site2Test

[App page](https://appshunter.io/ios/app/site2test/id6446329136)

**In-app purchases:** none


## Frequently asked questions

### Is Unify Trials free?

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

### Is Site2Test free?

Site2Test is free to download, with no in-app purchases.

### Do Unify Trials or Site2Test have ads?

Neither Unify Trials nor Site2Test shows ads.

### Which is updated more often, Unify Trials or Site2Test?

Unify Trials ships an update every 2 months, and Site2Test every 3 months. Most recently, Unify Trials was updated on October 2, 2026 and Site2Test on September 30, 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.*