# DocuTrial vs PK 3

The clearest difference is device support: PK 3 at 3 against DocuTrial's 1. PK 3 also leads on iOS requirement (11.0 vs 18.6). On price, rating, ratings volume and update cadence 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 DocuTrial against 5.0 for PK 3. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | DocuTrial | PK 3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/docutrial/id1329548148/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/pk-3/id1629504663/reviews) |
| Number of ratings | **3** | 2 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 84 MB | 3 MB |
| Requires iOS | 18.6 | **11.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sentral Clinical Research Services, LLC](https://appshunter.io/developer/930734529) | [MedKeeper LLC](https://appshunter.io/developer/525928594) |

## What reviewers say

### DocuTrial

[App page](https://appshunter.io/ios/app/docutrial/id1329548148)

This app is designed for users of the SentralBinders document management system. It provides access to and management of your documents within the SentralBinders ecosystem.

**Highlights:** SentralBinders integration, Document access, Document management, Subscriber-only access

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

**In-app purchases:** none


### PK 3

[App page](https://appshunter.io/ios/app/pk-3/id1629504663)

This app streamlines pharmacy operations by enhancing key processes. It is designed to improve efficiency and workflow within a pharmacy setting.

**Highlights:** Improves key operational processes, Enhances pharmacy workflow, Streamlines operations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DocuTrial free?

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

### Is PK 3 free?

PK 3 is free to download, with no in-app purchases.

### Which has better reviews, DocuTrial or PK 3?

DocuTrial and PK 3 are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do DocuTrial or PK 3 have ads?

Neither DocuTrial nor PK 3 shows ads.

### Which is updated more often, DocuTrial or PK 3?

DocuTrial ships an update every 2 months, and PK 3 every 2 months. Most recently, DocuTrial was updated on November 2, 2026 and PK 3 on November 3, 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.*