ChatterBaby
UCLA Health Lifestyle iPhoneiPadiPod touch
ChatterBaby is a free Lifestyle app for iPhone and iPad by UCLA Health. Rated 3.9/5 from 1,387 ratings. Requires iOS 15.1. Updated June 25, 2026.
- Rating
- 3.9
- 1.3K ratings
- Price
- Free
- on the App Store
- Size
- 23 MB
- Age 4+
- Updated
- Jun 25
- 2026 · v3.1
Screenshots
About ChatterBaby
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.
Ratings & reviews
3.9
1.3K ratings
What’s new
Version 3.1 · Updated June 25, 2026
API endpoint update
App privacy
The developer, UCLA Health, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Contact Info: Email Address
- User Content: Audio Data
Used for: App Functionality
Alternatives to ChatterBaby
Looking for apps like ChatterBaby? Here are 6 similar apps on the App Store. The highest rated is Baby Feed Timer, breastfeeding (4.9/5), and all 6 are free to download.
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Baby Translator: Cry Decoder
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Baby Feed Timer, breastfeeding
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Little Ones: Baby Sleep
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Sleep Baby Sleep
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CYBEX
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Storylines: Life Stories
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| ChatterBaby | 3.9 / 5 (1,387 ratings) | Free | June 25, 2026 | |
| Baby Translator: Cry Decoder | 4.8 / 5 (35) | Free | Oct 3, 2026 | Compare |
| Baby Feed Timer, breastfeeding | 4.9 / 5 (24,536) | Free | Sep 30, 2026 | Compare |
| Little Ones: Baby Sleep | 3.3 / 5 (158) | Free | Oct 13, 2026 | Compare |
| Sleep Baby Sleep | 4.7 / 5 (562) | Free | Apr 11, 2026 | Compare |
| CYBEX | 4.5 / 5 (1,251) | Free | Oct 12, 2026 | Compare |
| Storylines: Life Stories | 4.8 / 5 (124) | Free | Oct 12, 2026 | Compare |
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