# Patient Cloud vs Pfizer C4951086

The clearest difference is update cadence: Pfizer C4951086 at every 2 weeks against Patient Cloud's monthly. Patient Cloud's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Patient Cloud ships an update monthly, Pfizer C4951086 every 2 weeks. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Patient Cloud | Pfizer C4951086 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (113 ratings)](https://appshunter.io/ios/app/patient-cloud/id1361329140/reviews)** | — |
| Number of ratings | **113** | — |
| Positive reviews | 6.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 95 MB | 109 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Medidata Solutions Worldwide](https://appshunter.io/developer/554170117) | [ERT,INC](https://appshunter.io/developer/1160214546) |

## What reviewers say

### Patient Cloud

[App page](https://appshunter.io/ios/app/patient-cloud/id1361329140)

This app streamlines patient engagement and data collection for clinical trials. It allows patients to easily participate in studies by answering questionnaires on their mobile devices, while healthcare professionals and researchers can manage invitations and access real-time data.

**Highlights:** ePRO, ClinRO, and site mode functionality, Patient engagement and data management, Clinical trial participation via mobile, Questionnaire completion from home, Patient invitation and health data collection, Integration with Medidata Rave

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

**In-app purchases:** none


### Pfizer C4951086

[App page](https://appshunter.io/ios/app/pfizer-c4951086/id6766559443)

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

**In-app purchases:** none


## Frequently asked questions

### Is Patient Cloud free?

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

### Is Pfizer C4951086 free?

Pfizer C4951086 is free to download, with no in-app purchases.

### Do Patient Cloud or Pfizer C4951086 have ads?

Neither Patient Cloud nor Pfizer C4951086 shows ads.

### Which is updated more often, Patient Cloud or Pfizer C4951086?

Patient Cloud ships an update monthly, and Pfizer C4951086 every 2 weeks. Most recently, Patient Cloud was updated on September 23, 2026 and Pfizer C4951086 on September 17, 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.*