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Shell - Baby's First Heartbeat Listener

By Bellabeat, Inc.

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Listen to your baby's first heartbeat.

Shell by Bellabeat is a non-invasive Fetal Heartbeat Listener intended for expectant moms and families alike. It enables you to listen to the sound of your baby’s heart in an innovative and completely natural way without the use of Doppler technology. Like resting your ear against the tummy and turning the volume up.

Shell works by placing your phone’s microphone on the belly. An advanced algorithm, the first of its kind, non-invasively captures sounds from the womb and isolates the heartbeat.

Making this major life event interactive, Shell provides a unique way to announce a pregnancy with recording and sharing features and also offers a way to keep your inner circle connected with your growing bundle of joy as it progresses toward birth.

Depending on how far along you are, easy-to-use in-app tutorials depict where to position your phone to achieve optimal results. The tutorials are found in the side menu under ‘Education’.

Key features:
-Find and listen to your baby’s heartbeat
-Record and store an unlimited number of tracks
-Share the recordings with loved ones
-Enhance the bonding experience between you and your baby

Key components:
-Algorithms that filter out ambient noise to accurately enable listening
-Easy and safe to use. Just open the app and start listening for that tiny, rapid pulse.
-Non-invasive technology enables you to safely use your iPhone
-In-app tutorials for higher success rate


We like to ensure the safety of all moms and babies. Shell is safe to use but as a precaution, please place your phone in airplane mode.

Before using the Shell application take the device out of its case or cover in order to eliminate any false "beating" sounds.

For best results it is recommended to use Shell from week 30. In some instances the baby’s heartbeat can be heard even earlier.

Please note the Shell is NOT a medical device and is NOT intended to replace any medical advice given by a physician.

Shell is supported on the following iPhone devices: 5S, 6, 6 Plus, 6s, 6s Plus, SE, 7 and 7 Plus.

What's New in Version 1.5

-updated home and audio reproduction screens
-bugfixes and improvements

Thanks for using Shell! Every update of our app includes improvements to make Shell faster, more reliable and easier to use.
And finally, before using the Shell application take the device out of its case or cover in order to eliminate any false "beating" sounds.

iPhone Screenshots

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Customer Reviews

Great app

this morning I test it on my son and my heartbeat first... then I used it to hear the baby heartbeat and you can definitely hear it... I did have trouble using it but it was my fault as I forgot the case was on. Every time I use the app my baby loves to kick lol I always test it on my heart first before my belly to make sure the heart rate is different

Great app

Love everything about this app. Only when I tried to go back and look at my saved recordings I got kicked out of the app and back to my home screen. I tried clearing out the app then getting back on it and it won't let me sign back in. It was great to hear the heartbeat tho while I could! Very reassuring

Didn't really work

I did use this prior to the 30wks, so maybe that is the cause of it. I had been hearing a heartbeat for the last 2wks, but I found out today that my baby died 2wks ago according to the ultrasound. The app gave me a false sense of security, and that is why I gave it a 3. I don't believe it actually works, but it did give me some comfort in the idea of hearing my baby's heartbeat.

Shell - Baby's First Heartbeat Listener
View in iTunes
  • Free
  • Category: Lifestyle
  • Updated:
  • Version: 1.5
  • Size: 46.5 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 9.0 or later. Compatible with iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPad Air, iPad Air Wi-Fi + Cellular, iPad mini 2, iPad mini 2 Wi-Fi + Cellular, iPad Air 2, iPad Air 2 Wi-Fi + Cellular, iPad mini 3, iPad mini 3 Wi-Fi + Cellular, iPad mini 4, iPad mini 4 Wi-Fi + Cellular, 12.9-inch iPad Pro, 12.9-inch iPad Pro Wi-Fi + Cellular, 9.7-inch iPad Pro, 9.7-inch iPad Pro Wi-Fi + Cellular, and iPod touch (6th generation).

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