# SmartSignals® eCOA vs TruLab Sample Tracker

The clearest difference is update cadence: SmartSignals® eCOA at monthly against TruLab Sample Tracker's every 2 months. SmartSignals® eCOA also leads on iOS requirement (13.0 vs 15.1). TruLab Sample Tracker's advantage is ratings volume (11 vs 2). On price, rating, ads and in-app purchases 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 SmartSignals® eCOA against 5.0 for TruLab Sample Tracker. That said, the two scores are not equally well evidenced: TruLab Sample Tracker has 11 ratings behind it against 2, so its average is the more settled of the two.

SmartSignals® eCOA ships an update monthly, TruLab Sample Tracker every 2 months. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | SmartSignals® eCOA | TruLab Sample Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/smartsignals-ecoa/id1602206850/reviews) | [5.0 (11 ratings)](https://appshunter.io/ios/app/trulab-sample-tracker/id6443908394/reviews) |
| Number of ratings | 2 | **11** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 53 MB | 66 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Signant Health Oy](https://appshunter.io/developer/885378600) | [TruLab, Inc.](https://appshunter.io/developer/1533473451) |

## What reviewers say

### SmartSignals® eCOA

[App page](https://appshunter.io/ios/app/smartsignals-ecoa/id1602206850)

This app facilitates data collection from patients and caregivers in clinical trials for new medicines. It provides easy access to questionnaires, helping participants follow study protocols and ensuring data privacy.

**Highlights:** Patient data collection, Caregiver data collection, Clinical trial participation, Questionnaire access, Timely reminders, Patient privacy compliance

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

**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 SmartSignals® eCOA free?

SmartSignals® 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, SmartSignals® eCOA or TruLab Sample Tracker?

SmartSignals® eCOA and TruLab Sample Tracker are both rated 5.0 out of 5 on the App Store, from 2 and 11 ratings respectively.

### Do SmartSignals® eCOA or TruLab Sample Tracker have ads?

Neither SmartSignals® eCOA nor TruLab Sample Tracker shows ads.

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

SmartSignals® eCOA ships an update monthly, and TruLab Sample Tracker every 2 months. Most recently, SmartSignals® eCOA was updated on September 29, 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.*