# TruLab Sample Tracker vs Shared Investigator Platform

The clearest difference is update cadence: TruLab Sample Tracker at every 2 months against Shared Investigator Platform's every 6 months. On price, rating, ratings volume 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.

On the App Store both sit at effectively the same score — 5.0 for TruLab Sample Tracker against 5.0 for Shared Investigator Platform. Both are backed by a comparable volume of ratings — 11 and 5 respectively.

TruLab Sample Tracker ships an update every 2 months, Shared Investigator Platform every 6 months. The most recent releases landed on September 18, 2026 and June 26, 2026 respectively.

## The numbers

| Metric | TruLab Sample Tracker | Shared Investigator Platform |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (11 ratings)](https://appshunter.io/ios/app/trulab-sample-tracker/id6443908394/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/shared-investigator-platform/id6450245868/reviews) |
| Number of ratings | **11** | 5 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 58 MB | 44 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [TruLab, Inc.](https://appshunter.io/developer/1533473451) | [Cognizant Technology Solutions](https://appshunter.io/developer/387144373) |

## What reviewers say

### 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

**In-app purchases:** none


### Shared Investigator Platform

[App page](https://appshunter.io/ios/app/shared-investigator-platform/id6450245868)

This mobile application allows clinical trial site users to manage their actions on the Shared Investigator Platform. It facilitates easy login, E-signing, reviewing pending actions, accepting study invitations, and managing study staff. Users can also access study documents, complete tasks, and receive important notifications.

**Highlights:** User-friendly interface, E-sign functionality, Biometric authentication, Review pending actions, Accept study invitations, Manage study staff, Access study documents

**In-app purchases:** none


## Frequently asked questions

### Is TruLab Sample Tracker free?

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

### Is Shared Investigator Platform free?

Shared Investigator Platform is free to download, with no in-app purchases.

### Which has better reviews, TruLab Sample Tracker or Shared Investigator Platform?

TruLab Sample Tracker and Shared Investigator Platform are both rated 5.0 out of 5 on the App Store, from 11 and 5 ratings respectively.

### Do TruLab Sample Tracker or Shared Investigator Platform have ads?

Neither TruLab Sample Tracker nor Shared Investigator Platform shows ads.

### Which is updated more often, TruLab Sample Tracker or Shared Investigator Platform?

TruLab Sample Tracker ships an update every 2 months, and Shared Investigator Platform every 6 months. Most recently, TruLab Sample Tracker was updated on September 18, 2026 and Shared Investigator Platform on June 26, 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.*