Record, playback, live stream, and share patient body sounds and ECG. Eko connects your stethoscope to the cloud for an advanced, HIPAA-compliant auscultation experience.

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Use Eko to:

- Record, playback, annotate, and save audio and ECG
- Visualize audio waveforms (phonocardiograms) and ECGs (electrocardiograms)
- Securely share recordings with care teams or specialists
- Live stream auscultation sessions in real-time
- Sync auscultation reports with compatible EHRs
- Add notes to your recordings for future reference

This app is best used with an Eko CORE digital stethoscope or Eko DUO digital stethoscope and ECG - available at

Have questions, comments, or feedback?
Reach out to us at

What’s New

Version 3.3.0

1. ECG Signal Quality Meter
2. Tool tips
3. Onboarding improvements
4. Misc bug fixes and UI improvements

Ratings and Reviews

4.0 out of 5
33 Ratings

33 Ratings

ajsvet ,

Great customer service

I wrote a review with some of the shortcomings of the stethoscope/app and promptly received a response from the development team. It turns out that one shortcoming (the phone speaker audio) can’t really be fixed since it’s a speaker issue and not really an issue on the app’s part. The other one I mentioned, which was a loud noise after a recording playback finished playing through the stethoscope, was fixed very quickly. It turned out to be a known bug with some older models of the Eko Core, and I was immediately sent a replacement. The replacement was shipped without my needing to send the defective unit back first, since I would be without a stethoscope until the replacement arrived. I received the replacement unit within a few days, and I’ll now be sending back the defective unit free of charge. The audio bug seems to be gone, which is great, and it was a very easy process to fix the issue.

Developer Response ,

Thanks for the useful feedback! Since phones and computers are unable to emit low frequency heart sounds, we always recommend using headphones or speakers for playback. In regards to the quick record option, that is very good feedback and I'll make sure to pass this information along to the engineering team. Please feel free to contact if you are experiencing any bugs! We'd be happy to get it fixed for you.

ichibanjay ,

Replay sound too quiet

App is simple and interfaces nicely with eko duo but there are some major drawbacks:

1. Sound playback is really quiet, even when I connect my iPhone X to a Bose soundlink mini Bluetooth speaker or apple AirPods I can’t hear the recorded heart sounds at highest volume settings. Playing the sounds back through the eko duo is nice and loud.

2. Double clicking shortcut to record heart sounds and ekg only works when app is open. Would be nice if double clicking the eko duo automatic launches or sends recording to the app without having to pull out your phone and open the app.

Developer Response ,

I wanted to let you know that we've updated the App to have higher playback volume. We still recommend using headphones (BT or plugin) but the sound should be much more audible :)

LPM13 ,

Make the app playback louder.

Stethoscope OK. Does amplify sound as advertised, noise cancellation could be improved but acceptable. Please continue to improve. I would also like more comfortable earpads, the Littmann has larger, more comfortable earpads.

My main complaint is that the App is poor. Playback is very quiet when using any device except the stethoscope. Playback on iPhone speaker almost inaudible at max volume, playback on Bluetooth headphones just as bad. It’s not a problem with my ears, I’m in my late 20s with no hearing loss... playback is just quiet.

Also the sound of the recording does not match the tracing of the heart sounds, it is off by a second or so. They should sync up to be useful. It feels like a cheap mistake.

Finally, entering the pin to access recordings is annoying, I feel like it should have Face ID/touch ID like most other apps.

Overall I’m disappointed in the quality to price ratio. $300 is a premium, you need to reflect that. You guys have potential, please fix the app.

Developer Response ,

Thank you for your feedback.

We don't advise that users playback audio through the speakers of their mobile device, bodily sounds are too low frequency to be adequately reproduced by the speakers of a mobile device or even PC. Plug-in headphones and you should be able to listen to the audio much better. Make sure that the option to 'Play from iPhone' is toggled to On in the Settings panel, may help some. You can also playback and listen to sounds through the CORE itself.

Also using other Bluetooth connected devices like headphones is not recommended; limitations with the Bluetooth bandwidth will result in poor auscultation transmission.

If you've set up a PIN TouchId should be available to you (appears at the bottom right of the screen). We don't currently support FaceID.

If you have additional questions please contact us directly at


Eko Devices, Inc.
106.1 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Frequent/Intense Medical/Treatment Information


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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