# One Heart App — Digital Heart Sound Screening

> Digital Heart Sound Screening (iPhone/iPad app by One Heart Health.)

- Source: https://appshunter.io/ios/app/one-heart-app/id6738925613 (this page in markdown: same URL + `.md`)
- Developer: [One Heart Health](https://appshunter.io/developer/1782940422)
- Category: Education, Medical
- Price: Free
- Age rating: 12+
- Requires: iOS 15.1 · 40 MB
- Languages: English
- Released: 2024-12-05
- Data updated: 2026-06-20
- User reviews in markdown: https://appshunter.io/ios/app/one-heart-app/id6738925613/reviews.md

## What is One Heart App?

The One Heart App is a congenital heart disease (CHD) educational screening solution to reach the 90% of children in the world who do not have access to quality cardiac care. The One Heart App enables healthcare workers to reach remote and underserved populations and provide CHD screening using a digital stethoscope and a mobile device. The One Heart App allows users to create an account, add patients, record heart sounds, assign patients to an expert user, complete consultation of assigned patients, and review consultation results. There are three primary users for the One Heart App including general users, nurses, and pediatric cardiologists (expert users). 

Please Note: the demo version of this application is available for anyone to download, however, the use of the machine learning algorithms integrated in version 1.2 are restricted to institutional users who have ethical clearance and are using the One Heart App for clinical investigative purposes only. If you are interested in using the One Heart App and integrated machine-learning algorithms for clinical investigation or wish to join the Digital Heart Sounds Study program, please contact us at Contact@onehearthealth.org.


## Version history (last 5 releases)

### 1.4.0 — 2026-06-06

Improved designs and accessibility across light and dark modes. Minor bug fixes and improvements.

### 1.3.2 — 2025-10-11

- Bug Fix for heart recordings UI freezing and crashing when recording and uploading 5 heart sites
- Minor code optimizations and run time improvements

### 1.3.0 — 2025-08-21

- A new "Triage Status" field has been added for users to track and review statuses at a glance accurately.
- Improved phoncardiogram/waveform with live "preview" mode to check signal-to-noise before recording, as well as performance optimizations for faster UI updates
- Improved recording playback waveform with stability to render waveforms reliably and handle portrait and landscape modes

### 1.2.0 — 2025-06-17

Version 1.2 of the One Heart App includes major updates to existing functionality and adds two machine-learning algorithms to the application (restricted to institutional users participating in clinical investigation with ethical clearance). Major updates include:

- Improved UI across full flow of the application
- Improved heart sound recording functionality
- Improved phonocardiogram functionality
- Integrated heart sound quality assessment algorithm (restricted to institutional users participating in clinical investigation with ethical clearance)
- Integrated pathologic murmur detection algorithm (restricted to institutional users participating in clinical investigation with ethical clearance)

### 1.0.1 — 2025-03-15

Updated Phonocardiogram for iOS with faster signal processing, less noise detection, and more traditional PCG appearance
Phonocardiogram views now appear in landscape for improved visibility and greater ability to see heartbeats and potential murmurs

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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 2026-06-20.*