ChatterBaby vs Self
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChatterBaby
This app analyzes your baby's cries using a database of sounds and mathematical algorithms to help you understand why they are crying. It aims to identify hunger, fussiness, or pain, with a high degree of accuracy. For best results, use in a quiet environment.
- Analyzes baby cry sounds
- Identifies reasons for crying (hunger, fussiness, pain)
- Uses a database of 1,500+ sounds
- High accuracy for pain and general cries
- Requires minimal background noise for optimal performance
- HIPAA-compliant data storage for scientific research
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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.
Self
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- 每天用 1 分钟记录今日份让自己快乐的“三件小事”,看见自己 - 获取温柔灵感卡片与金句,让好心情更容易发生 - 培养可持续的小习惯,而不是“逼迫自己” - 回看历史时刻,感受持续积累带来的改变 为谁而来 - 频繁忙碌、容易忽略自己的你 - 想建立温和自律与自我对话的你 - 正在经历压力、希望找回力量与稳定的你 我们的承诺 - 不需要注册账号,默认仅在本地保存你的记录 - 不做复杂的“打卡 KPI”,日常记录和安排 温馨提示 - 你可以从今天开始,只写下 1 件让你微笑的小事 - 当你看见它们越来越多,你也会更看见自己
Screenshots
Verdict
The clearest difference is update cadence: Self at weekly against ChatterBaby's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ChatterBaby ships an update every 9 months, Self weekly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.
| Parameter | ChatterBaby | Self |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (1.4K ratings) — better | — |
| Positive reviews | 40.6% of reviews | — |
| Number of ratings | 1.4K — better | — |
| Update frequency | Every 9 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 23 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | UCLA Health | 媛媛 朱 |
Bugs and requests
ChatterBaby
Reported bugs
4 issues- Server errors
- Registration issues
- Incompatibility with certain devices
- Incorrect cry analysis
Requested features
4 requests- Longer recording time
- More detailed cry analysis
- Personalized learning for individual babies
- Integration with other baby care apps
Self
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ChatterBaby
No in-app purchases
Self
No in-app purchases









