# Preclarus vs Clinical ink

The clearest difference is rating: Preclarus at 5.0 against Clinical ink's 1.7. Preclarus also leads on iOS requirement (11.0 vs 15.5). Clinical ink's advantage is update cadence (monthly vs every 11 months). On price, ratings volume, 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.

Preclarus holds the better App Store score, 5.0 against 1.7. Both are backed by a comparable volume of ratings — 6 and 6 respectively.

Preclarus ships an update every 11 months, Clinical ink monthly. The most recent releases landed on June 1, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Preclarus | Clinical ink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/preclarus/id1402627522/reviews)** | [1.7 (6 ratings)](https://appshunter.io/ios/app/clinical-ink/id1561312713/reviews) |
| Number of ratings | 6 | 6 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Monetization | Free | Free |
| Size | 34 MB | 100 MB |
| Requires iOS | **11.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [PHARMACEUTICAL PRODUCT DEVELOPMENT, LLC](https://appshunter.io/developer/1402627521) | [Clinical Ink, Inc](https://appshunter.io/developer/1140203671) |

## What reviewers say

### Preclarus

[App page](https://appshunter.io/ios/app/preclarus/id1402627522)

Manage clinical trials on the go with this mobile portal. Review test results, manage subject registration, track shipments, and order supplies. It offers full real-time data integration with the web version.

**Highlights:** Test results review with graphing, Alert review and query resolution, Subject registration, Specimen accessioning, Shipment and specimen tracking, Supply ordering and inventory management, Real-time web integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Clinical ink

[App page](https://appshunter.io/ios/app/clinical-ink/id1561312713)

This app simplifies participation in clinical trials by offering features like visit assistance, medication reminders, educational content, and questionnaires. It helps users manage their trial responsibilities and understand their treatment better.

**Highlights:** Visit assistance and directions, Medication and task reminders, Trial-specific educational content, Health and task questionnaires, Performance feedback

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Preclarus free?

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

### Is Clinical ink free?

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

### Which has better reviews, Preclarus or Clinical ink?

Preclarus is rated higher. Preclarus averages 5.0 out of 5 from 6 ratings, while Clinical ink averages 1.7 from 6 ratings.

### Do Preclarus or Clinical ink have ads?

Neither Preclarus nor Clinical ink shows ads.

### Which is updated more often, Preclarus or Clinical ink?

Preclarus ships an update every 11 months, and Clinical ink monthly. Most recently, Preclarus was updated on June 1, 2026 and Clinical ink on September 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.*