# PatientGO vs FLEX Study App

The clearest difference is update cadence: PatientGO at every 2 months against FLEX Study App's every 5 months. FLEX Study App's advantage is iOS requirement (12.0 vs 15.0). 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.

PatientGO ships an update every 2 months, FLEX Study App every 5 months. The most recent releases landed on July 24, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | PatientGO | FLEX Study App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/patientgo/id1524267117/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | — |
| Size | 70 MB | 149 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Illingworth Research](https://appshunter.io/developer/1524267119) | [Definitive Media Corp.](https://appshunter.io/developer/996237890) |

## What reviewers say

### PatientGO

[App page](https://appshunter.io/ios/app/patientgo/id1524267117)

This app aims to reduce the burden of clinical trial participation for patients and their families. It offers solutions for travel arrangements, expense reimbursements, and other support to prevent trial dropouts due to avoidable reasons.

**Highlights:** Travel management for hospital visits, Fast expense reimbursements, Patient support solutions, Reduced clinical trial dropouts, Duty of care for patients

**In-app purchases:** none


### FLEX Study App

[App page](https://appshunter.io/ios/app/flex-study-app/id1627659963)

**In-app purchases:** none


## Frequently asked questions

### Is PatientGO free?

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

### Is FLEX Study App free?

FLEX Study App is free to download, with no in-app purchases.

### Do PatientGO or FLEX Study App have ads?

Neither PatientGO nor FLEX Study App shows ads.

### Which is updated more often, PatientGO or FLEX Study App?

PatientGO ships an update every 2 months, and FLEX Study App every 5 months. Most recently, PatientGO was updated on July 24, 2026 and FLEX Study App on May 16, 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.*