# X4P-001-110

> X4P-001-110 (iPhone/iPad app by ERT, INC.)

- Source: https://appshunter.io/ios/app/x4p-001-110/id6479640437 (this page in markdown: same URL + `.md`)
- Developer: [ERT, INC](https://appshunter.io/developer/1160214546)
- Category: Medical
- Price: Free
- Age rating: 12+
- Requires: iOS 12.0 · 79 MB
- Languages: American English
- Released: 2024-06-28
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/x4p-001-110/id6479640437/reviews.md

## What is X4P?

The X4 Pharmaceuticals eCOA App is intended for use collect patient reported outcomes relating to the X4P-001-110 clinical trial. Patients must be given accounts by a participating site in order to log in to the app.


## Version history (last 4 releases)

### 2.17.4 (32) — 2025-10-31

Language Update

### 2.17.3 (28) — 2025-07-08

Language Update

### 2.17.2 (26) — 2025-06-24

Language Update

### 2.17.0 (9) — 2024-06-28

No release notes.

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All apps by ERT, INC: https://appshunter.io/developer/1160214546

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*