Recommended Free Tools
iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
AI can detect and analyze cough sounds, but current evidence supports cough counting, monitoring and research more strongly than a stand-alone diagnosis of what is causing a cough. Hyfe Cough Tracker has reported strong results in a controlled sound study; Google HeAR is a research model, and Swaasa is a cough-analysis platform with preliminary clinical-validation evidence. None of those facts, by themselves, establishes that an app can reliably diagnose your cough or that it is authorized to do so.
Can an app identify the cause of a cough?
Sometimes cough audio contains signals that may help distinguish respiratory conditions. But hearing a cough and identifying its cause are different tasks. An app may detect and count cough-like sounds without showing that the person has a particular infection or lung disease.
Diagnosis depends on more than sound. The performance of an audio model can vary with its training data, microphone, background noise, acoustic conditions, the population tested and how common a condition is in that population. A result from a controlled recording study therefore does not establish how well the same system will work for people using it at home.
Quick wins for a faster PC:
Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →A 2024 systematic review covered 75 audio-analysis studies, including work on cough detection, lower-respiratory symptoms, and voice or speech diagnostics. The breadth of that research shows why cough AI is an active area of study, not that every tool has been validated as a diagnostic product.
#1 Best Overall
- SMART STETHOSCOPE — The CORE 500 is the modern stethoscope replacement, blending 3-lead ECG with AI insights, unparalleled audio clarity, waveform visualizations, and exam recording and sharing capabilities.
- AI DETECTION WITH EKO+ — Your purchase includes a free 14-day Eko+ trial to unlock murmur and AFib detection, plus unlimited recording. Membership is $119.99/year afterwards. You can downgrade anytime. Even without Eko+, you can enjoy basic features of the app.
- SEE MORE INSIGHTS — Visualize what you’re hearing during your exam. Connect to the Eko App for waveform visualization and single sound recording with real-time playback during exams.
- NEXT-GEN AUDIO — Advanced audio technology minimizes artifact and delivers the most precise sound with background noise reduction and up to 40x amplification. Pick up heart, lung, and body sounds with precision using Cardio, Pulmonary, and Wide audio filters.
- FULL-COLOR DISPLAY — Heart rate and ECG data, exam insights, and device settings are visible directly on the stethoscope’s screen for a comprehensive view of your patient’s heart.
Which AI cough apps and platforms are available?
| Tool | What it does | Evidence described here | What that evidence does not establish |
|---|---|---|---|
| Hyfe Cough Tracker | Smartphone app for passive cough monitoring | A controlled study of solicited respiratory sounds reported 91% sensitivity, 98% specificity and a Pearson correlation of 0.968 with human cough counts. | Those results do not establish diagnostic accuracy in everyday community use or identify the cause of an individual cough. |
| Google HeAR | Health Acoustic Representations, a bioacoustic foundation model for researchers building custom models | Google Research says it was trained on 300 million pieces of de-identified audio, including roughly 100 million cough sounds. | HeAR is not described as a consumer diagnostic app, and its training scale alone does not prove that a particular condition can be diagnosed accurately. |
| Salcit Technologies’ Swaasa | AI product that analyzes cough sounds and assesses lung health | A 2025 medRxiv preprint reports clinical validation using smartphone cough recordings and physician diagnoses as the reference standard. | A preprint is preliminary evidence; it is not proof of regulatory clearance or a definitive diagnosis for an individual user. |
What Hyfe’s accuracy figures mean
Results from a controlled sound study
Hyfe’s reported 91% sensitivity, 98% specificity and 0.968 Pearson correlation came from a controlled study of solicited respiratory sounds. Sensitivity and specificity describe performance in that study’s setting; the correlation compares app cough counts with human counts. These figures are not interchangeable, and none is a percentage chance that the app will correctly identify the cause of your cough.
Why real-world performance can differ
The study authors called for more validation in clinical and community settings. The published method also notes that environmental noise can reduce performance. A controlled result should not be assumed to transfer unchanged to a noisy home, a crowded place or a different phone and microphone.
Rank #2
- The 3M Littmann CORE Stethoscope connects with Eko software on a smart device to visualize, record and share data. (Smart device not included. Some features require a subscription)
- Connects to Eko software to visualize and share heart sound waveforms
- Up to 40x amplification (at peak frequency, vs. analog mode)
- Active noise cancellation reduces unwanted background sounds
- Toggle between analog and amplified listening modes; Designed for use with adult and pediatric patients
What happens to the sound recording?
Hyfe’s published method says the app continuously monitors ambient sound, records a 0.5-second snippet around an explosive sound it detects, sends that snippet to a cloud server and applies a convolutional neural network to produce a cough score. That description is specific to the published Hyfe method; it should not be treated as a privacy description for HeAR, Swaasa or every cough app.
Do these 3 things before closing this tab:
1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesBefore enabling microphone access, check the app’s current privacy notice and settings for what is captured, whether audio or derived data is sent off-device, how long it is retained, who can access it and how to delete it. The information available here does not establish those details for HeAR or Swaasa.
Rank #3
- SMART STETHOSCOPE — The CORE 500 is the modern stethoscope replacement, blending 3-lead ECG with AI insights, unparalleled audio clarity, waveform visualizations, and exam recording and sharing capabilities.
- AI DETECTION WITH EKO+ — Your purchase includes a free 14-day Eko+ trial to unlock murmur and AFib detection, plus unlimited recording. Membership is $119.99/year afterwards. You can downgrade anytime. Even without Eko+, you can enjoy basic features of the app.
- SEE MORE INSIGHTS — Visualize what you’re hearing during your exam. Connect to the Eko App for waveform visualization and single sound recording with real-time playback during exams.
- NEXT-GEN AUDIO — Advanced audio technology minimizes artifact and delivers the most precise sound with background noise reduction and up to 40x amplification. Pick up heart, lung, and body sounds with precision using Cardio, Pulmonary, and Wide audio filters.
- FULL-COLOR DISPLAY — Heart rate and ECG data, exam insights, and device settings are visible directly on the stethoscope’s screen for a comprehensive view of your patient’s heart.
Are cough-analysis apps FDA-cleared?
FDA oversight depends on a software function’s intended use and risk. Some mobile software functions may be medical devices, while lower-risk wellness functions may fall under enforcement discretion. Check the FDA’s current AI-enabled medical-device list and the product’s own regulatory statements rather than assuming that an AI health feature is cleared.
The available information does not establish FDA authorization for Hyfe, Google HeAR or Swaasa to diagnose the cause of a cough. BARDA’s target-product profile identifies cough-audio diagnostics for screening infections such as COVID-19, influenza, RSV and tuberculosis as a medical-countermeasure goal; a target profile is not authorization of a consumer product.
Quick Recap
Best Value
- The 3M Littmann CORE Stethoscope connects with Eko software on a smart device to visualize, record and share data. (Smart device not included. Some features require a subscription)
- Connects to Eko software to visualize and share heart sound waveforms
- Up to 40x amplification (at peak frequency, vs. analog mode)
- Active noise cancellation reduces unwanted background sounds
- Toggle between analog and amplified listening modes
Rank #4
- SMART STETHOSCOPE — The CORE 500 is the modern stethoscope replacement, blending 3-lead ECG with AI insights, unparalleled audio clarity, waveform visualizations, and exam recording and sharing capabilities.
- AI DETECTION WITH EKO+ — Your purchase includes a free 14-day Eko+ trial to unlock murmur and AFib detection, plus unlimited recording. Membership is $119.99/year afterwards. You can downgrade anytime. Even without Eko+, you can enjoy basic features of the app.
- SEE MORE INSIGHTS — Visualize what you’re hearing during your exam. Connect to the Eko App for waveform visualization and single sound recording with real-time playback during exams.
- NEXT-GEN AUDIO — Advanced audio technology minimizes artifact and delivers the most precise sound with background noise reduction and up to 40x amplification. Pick up heart, lung, and body sounds with precision using Cardio, Pulmonary, and Wide audio filters.
- FULL-COLOR DISPLAY — Heart rate and ECG data, exam insights, and device settings are visible directly on the stethoscope’s screen for a comprehensive view of your patient’s heart.
How to use a cough-listening app responsibly
- Match the tool to the task. Treat cough counts and trends as monitoring information, not as proof of a disease.
- Read the evidence in context. Look for the population studied, recording conditions, reference standard and whether validation was controlled or conducted in real-world use.
- Check privacy before granting microphone access. Understand whether recordings leave your phone and how the provider handles them.
- Verify regulatory claims. Confirm the exact product and intended use in current FDA information; a research model or preprint is not a clearance.
- Get clinical assessment when needed. Do not use an app result to delay care for a persistent, severe or concerning cough.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
