# Soundpulse > iPhone heart rate monitor using audiotechnology on bare chest. (iPhone/iPad app by Lifestream Creations GmbH.) - Source: https://appshunter.io/ios/app/soundpulse/id511288248 (this page in markdown: same URL + `.md`) - Developer: [Lifestream Creations GmbH](https://appshunter.io/developer/511288311) - Category: Lifestyle, Medical - Price: Free - Rating: 2.50/5 from 2 App Store ratings · 15 written reviews indexed - Age rating: 4+ - Requires: iOS 5.0 · 15 MB - Languages: American English, German (Germany) - Released: 2012-04-06 - Data updated: 2026-08-30 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/soundpulse/id511288248/reviews.md ## What is Soundpulse? Do you want to know how fast your heart beats? Soundpulse reached Top 10 in "Lifestyle": #1 in Italy #1 in Slovenia #2 in China #2 Hong Kong #3 in Macau #5 in Hungary #6 in Taiwan #7 in Malaysia #7 in Thailand #9 in Poland #9 in Slovakia #9 in Vietnam Please note: Use Soundpulse on your bare chest! Soundpulse evaluates your heart rate with a unique audiotechnology made in Germany. Soundpulse displays your personal rhythm of life. Everywhere and anytime. Tap the heartshaped Icon, press the iPhone on your left chest and within 5 seconds you can read off the measurement results. How it works: 1. Tap the Measurement Button! 2. Within 4 seconds place your iPhone on your left chest. 3. The measurement begins! 4. Wait 5 seconds. 5. Done! You may now read off the results. Hints: · If you use a bumper or a case for your iPhone, please remove it first. · The measurement results are most reliable, if you press the iPhone on your bare skin applying a steady and light pressure. · Make sure that you are in a quiet environment.Your iPhone will vibrate when the measurement process starts. Please hold it as still as possible. · Once your iPhone vibrates for the second time the measurement is finished. The measurement was not successful? Just try again and stick to the hints. The measurement may be inaccurate or even impossible if: your iPhone is in a bumper or case , you are in a noisy environment, your blood pressure is low, you suffer from Myocardial degeneration, you are dressed in heavy clothes or you are overweight. Do you miss a feature in this app? Please contact us: info@lifestream-creations.com ## Key features - Heart rate measurement - Audiotechnology - Real-time results - Bare chest measurement - iPhone integration ## Recent user reviews (10 of 15) All indexed reviews: https://appshunter.io/ios/app/soundpulse/id511288248/reviews.md ### 1/5 — Joke *2016-02-16* Doesn't work , I placed it with a stethoscope. So yeah, I should know ### 4/5 — Pretty good :) *2014-04-15* I put the gone to the floor to see if it would "detect" a hb but it keept saying 0 so i used it on my self and got a good reading ### 5/5 — Dead-On Accurate EVERY TIME *2012-06-08* I tested this APP and (just noticed Warren A's comment/review afterward) that you must place the microphone (IT'S ON THE BOTTOM OF THE iPHONE ... DOH) against your chest. I bet if you do that, it WILL work. I did it just using common sense and then had my wife (and she's an experienced Cardiologist) check my pulse in blind tests. Each time we were either EXACT Or the deviation was one beat off per minute!! That's incredible! So - if you made the mistake of laying the iPhone down? Of course it will not work!! I also found just laying one firm fingertip on the top to be the best pressure level for me. Good luck to those who DON'T read the directions carefully. (even though that's kind of a scary lack of logical thought those of you lay-downer's used). "Dr. Wifey" was skeptical herself, but she was proven wrong every time. It DOES work. ### 1/5 — Pathetic - does not work! *2012-05-10* Despite trying about 20 times I was unable to get a reading (yes I know where the microphone is). It seems to animate the heart in time with my beat, but every time it comes back zero. You're better off just taking your pulse ( and it's more accurate). ### 1/5 — Crap *2012-05-04* Absolute crap! ### 1/5 — correct 2 out of 10 times? *2012-05-03* No way you could ever rely on this. A novelty at best. I checked my pulse and was about 90bpm. Using this app, it ranged from 30 to 140 and of course recorded a few 0s too. ### 1/5 — just wont work *2012-04-27* i tried and followed all the steps, and the app just never works. kept getting 0. ### 5/5 — Here's a hint. . . *2012-04-26* Make sure the BOTTOM of your iPhone is touching your chest. That's the end with the microphone. UNMUTED and in a quiet area. Just like as if you are in the doctors office. Works for me every time. . . ### 2/5 — Good idea, bad execution. *2012-04-26* I can't get a reliable result. ### 1/5 — doesnt work *2012-04-26* i keep getting 0, and i know im alive so i must hav a heartbeat lol ## Frequently asked questions about Soundpulse ### How does Soundpulse measure heart rate? Soundpulse uses a unique audiotechnology made in Germany to evaluate your heart rate. You place your iPhone on your bare chest, and the app listens to your pulse to provide a reading. ### What is the accuracy of Soundpulse measurements? Measurement accuracy can be affected by factors such as using a bumper or case, being in a noisy environment, low blood pressure, myocardial degeneration, heavy clothing, or being overweight. For best results, use on bare skin in a quiet environment. ### How long does a measurement take with Soundpulse? A measurement with Soundpulse is very quick. After placing your iPhone on your chest, the process begins and you can read off the measurement results within approximately 5 seconds. ### Does Soundpulse have ads? No, Soundpulse does not contain advertisements. It is a free application that focuses on providing its core functionality without interruptions. ### What devices is Soundpulse compatible with? Soundpulse is designed for use with iPhones and iPods. Ensure your device is compatible before attempting to use the application for heart rate measurements. ### When was Soundpulse last updated? The latest version of Soundpulse, 1.3, was last updated on September 13, 2012. The app was initially released on April 6, 2012. ### What is the age rating for Soundpulse? Soundpulse has an age rating of 4+. This indicates it is suitable for users of all ages, though younger users may require adult supervision for proper use. ### What should I do if my Soundpulse measurement is not successful? If a measurement is not successful, try again by ensuring your iPhone is on bare skin, removing any case or bumper, and being in a quiet environment. Holding the iPhone still when it vibrates is also key. ## Version history (last 4 releases) ### 1.3 — 2012-09-13 - small big fixes ### 1.2 — 2012-09-03 - improved accuracy of measurements ### 1.1 — 2012-04-17 Thank you for your feedback! We have: - optimized the heart rate detection algorithm - reduced measurement time to 5 seconds If you have any feature requests feel free to contact us! ### 1.0 — 2012-03-29 No release notes. ## More apps by Lifestream Creations GmbH - [Learning like a Sir](https://appshunter.io/ios/app/learning-like-a-sir/id522065705) - [Fußballgott – EM 2012 Deutschland Edition](https://appshunter.io/ios/app/fuballgott-em-2012-deutschland-edition/id530467569) - [Orwell](https://appshunter.io/ios/app/orwell/id771793613) - [Fußballgott – Brasilien 2014](https://appshunter.io/ios/app/fuballgott-brasilien-2014/id882429345) All apps by Lifestream Creations GmbH: https://appshunter.io/developer/511288311 --- *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 2026-08-30.*