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App Store Apps > Lifestyle > ChatterBaby
ChatterBaby icon

ChatterBaby

by UCLA Health · Lifestyle · Free
On the App Store since March 2018 · Data updated 2026-10-30

ChatterBaby is made and published by UCLA Health. AppBrain is an independent app data site and isn't affiliated with UCLA Health. The app name, icon, screenshots and description belong to UCLA Health and are shown as published on the App Store.

AppBrain's verdict

Established
Rating on App Store
3.94
1,389 ratings
Last updated
June 25, 2026
Size
23.5 MB

Users are divided: 3.9 stars from 1,389 ratings.

Official page on the App Store

User feedback

Ratings and reviews on the App Store

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Store listing

By UCLA Health, from the App Store
ChatterBaby Screenshot 1 of 5
ChatterBaby Screenshot 2 of 5
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Screenshots by UCLA Health, from the the App Store listing
Description by UCLA Health Written by the developer, not by AppBrain. Click to read.
What is ChatterBaby?
ChatterBaby compares your baby’s sounds to our database of roughly 1,500 sounds, to determine whether and why your infant cries. It uses math(emagics). Before you use it, you must apologize to every math teacher you’ve ever told, “Why do I need to learn this junk?”

How accurate is ChatterBaby?
ChatterBaby correctly identifies roughly 85% of pain cries, and is roughly 90% accurate for catching any baby cries. Fussy/whiny cries are the cries most often mistaken for non-crying.

How can I make ChatterBaby work better?
The less background noise is present, the better the algorithm will work. If you feed it a soundclip of you singing to your crying baby, it will not work. If you feed ChatterBaby a soundclip of your dog barking, it will not work.

What kinds of cries does ChatterBaby predict?
The algorithm assumes the baby is crying for only three reasons: hungry, fussy, and pain. If your baby is crying because he really, really, wants to taste some Legos and you just won’t let him (true story), it will not work. Sad fact: separation anxiety cries are predicted as “pain” by our algorithm.

Can I trust the ChatterBaby algorithm?
Your brain and your own intuition are far more powerful than the fanciest equations. If the ChatterBaby algorithm and your own common sense disagree, always trust your brain.

What happens to my data?
We store it for science on a server that is HIPAA-compliant, removing as much information as possible that links your data to you individually. We are interested in discovering whether abnormal vocalization patterns in infants can predict neurodevelopmental delays such as autism. Odds are, a human being will never actually hear your baby’s audio sample; a computer script will run some math on it and throw the answers in a big spreadsheet to do even more math. For more information, see the Consent Form you agreed to when launching the app: link to consent.

Is there a warranty?
Nope. Nein. Zero. Zilch. Nada.

Is this a medical device?
No. See also “Can I trust the ChatterBaby algorithm?“ above.

What about remote monitoring?
TBD.
Official page on the App Store Also on Google Play

Safety and technology

Found in the app by AppBrain
Price
Free
App size
23.5 MB
Content rating
Everyone

Technologies used by ChatterBaby

Releases

Updates seen on the App Store
Version
3.1
Launched
March 2018

No changelog data

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Rankings

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This app is not ranked

About the app and developer

About ChatterBaby

ChatterBaby is a lifestyle app developed by UCLA Health.

What is the rating of ChatterBaby?

ChatterBaby is rated 3.94 out of 5 stars, based on 1.4 thousand ratings.

Is ChatterBaby free?

ChatterBaby is free. The app size is 23.49 MB. The latest version available is 3.1. The last update was on June 25, 2026.

What are the requirements for ChatterBaby?

The app has a content rating of Everyone. The app has been available on the App Store since March 2018.

Developer information for UCLA Health

UCLA Health

Address:

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