Comparison

Steth IO vs HD Steth

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Steth IO

Record and visualize biological sounds using specialized hardware. This application transforms your device into a tool for capturing and analyzing bodily acoustics.

Highlights
  • Record biological sounds
  • Visualize sound data
  • Compatible with Steth IO hardware
  • Analyze bodily acoustics
Read full description

When used with the Steth IO hardware, the Steth IO app allows you to record and visualize biological sounds.

About

HD Steth

This medical app pairs with a smart stethoscope to visualize heart sounds and ECG waveforms simultaneously. It aids in early detection of cardiac anomalies by offering smart amplification and recording capabilities for professional review.

Highlights
  • Integrated ECG and heart sound visualization
  • Smart amplification for auscultation
  • Bluetooth connectivity to smart stethoscope
  • Record and replay cardiac data
  • Adjustable gain and amplification
  • Multiple auscultation modes (Bell, Diaphragm, Lung)
Features
Read full description

HD Steth is a Smart Stethoscope with Integrated ECG. It's leading-edge technology aids in the early detection of cardiac anomalies. It employs smart amplification for best in class dynamic auscultation. The HD App is designed to be used in conjunction with the HD Steth smart stethoscope. HD App connects to any HD Steth via standard Bluetooth protocol. It is a state of the art app that can perform many functions that are required as part of cardiac testing. It allows for medical professionals, caregivers and users to visualise heart sounds as well as see the electrical waveform of an EKG. Both waveforms are displayed simultaneously. The interface is designed to user-friendly and many functions can be done intuitively. The amplification and gain of both waveforms can be adjusted dynamically. Test data can be recorded on the fly and saved to the local device. Recorded data can be replayed or reviewed by specialists and users. The information can be saved to a patient's medical record. Disclaimer: HD Steth is an electronic Stethoscope meant to assist a qualified clinician to capture, record and replay heart sounds and electrocardiogram (ECG or EKG) rhythm. It is intended to be used on one patient at a time. Heart sounds (PCG) and 1-lead EKG rhythm are acquired and displayed simultaneously on an accompanying mobile application on a hand-held smart device like a phone or tablet. The waveforms can be recorded and saved on the smart device on which the app is running. The device has 3 auscultation modes – Bell, Diaphragm and Lung (Wide). These modes and volume levels can be changed by the press of a button. The EKG rhythm recording assists in getting an indicative Heart Rate (HR) that gets displayed on a display panel on the device. Regulatory Clearance Notice This app connects to medical hardware that has received regulatory clearance from the U.S. Food and Drug Administration (FDA) and is intended for use only within the United States. The medical hardware and associated features are not cleared or approved for clinical use in other jurisdictions.The device must be used in a clinical setting by trained and qualified personnel only. HD Steth is not intended to be used as a diagnostic device. It does not supersede the judgement of a qualified clinician. The device is intended to aid the physician in the evaluation of PCG and EKG rhythm. The clinicians are completely responsible for reviewing and interpreting the results, along with all other relevant information, when making a referral decision.

Screenshots

Steth IO4 screens
HD Steth4 screens

Verdict

The call

The clearest difference is review sentiment: Steth IO at 80% against HD Steth's 0%. Steth IO also leads on rating (4.2 vs 2.0) and ratings volume (13 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Steth IO holds the better App Store score, 4.2 against 2.0. That said, the two scores are not equally well evidenced: Steth IO has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of Steth IO's written reviews are positive against 0% of HD Steth's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 9, 2026 and June 1, 2026 respectively.

Scorecard4 real differences · 6 level
Steth IO versus HD Steth: the parameters behind the verdict, then further details
ParameterSteth IOHD Steth
PriceFreeFree
Rating4.2 (13 ratings) — better2.0 (1 ratings)
Positive reviews80.0% of reviews — better0.0% of reviews
Number of ratings13 — better1
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better26.0
Further details — not scored
Size63 MB22 MB
Age rating4+17+
DeveloperStratoScientific, Inc.HD Medical, Inc

Customer experience

Steth IO

All ratings13 ratings
Positive76.9%
Neutral0.0%
Negative23.1%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

HD Steth

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Steth IO

No in-app purchases

None

HD Steth

No in-app purchases

Questions

Is Steth IO free?
Steth IO is free to download, with no in-app purchases.
Is HD Steth free?
HD Steth is free to download, with no in-app purchases.
Which has better reviews, Steth IO or HD Steth?
Steth IO is rated higher. Steth IO averages 4.2 out of 5 from 13 ratings, while HD Steth averages 2.0 from 1 ratings.
Do Steth IO or HD Steth have ads?
Neither Steth IO nor HD Steth shows ads.
Which is updated more often, Steth IO or HD Steth?
Steth IO ships an update every 2 months, and HD Steth every 2 months. Most recently, Steth IO was updated on September 9, 2026 and HD Steth on June 1, 2026.

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