THE HAPPIEST BABY APP
Dr. Karp's expertise, in the palm of your hand!
Ever wish you could consult a baby sleep expert at 2am or have a child development specialist by your side mid-meltdown? The Happiest Baby App Premium Subscription puts Dr. Harvey Karp’s methods, developed from decades of research, right in your pocket—helping you calm crying, improve sleep, and feel more confident raising happier kids.
Not a substitute for medical advice. Always consult your pediatrician for health concerns.A complimentary Premium Subscription is included with all authorized SNOO purchases and rentals, or you can pay to subscribe! See details.
Real-Time Help That Meets You Where You Are
Trusted Guidance for Every Stage
Parenthood may not come with instructions, but Dr. Harvey Karp’s expert advice comes pretty close!
Inside the Happiest Baby App you’ll find Dr. Karp’s trusted parenting guidance delivered in simple, practical ways designed for real life.
Explore:
- Short expert videos from Dr. Karp
- Thousands of articles from Happiest Baby
- Practical tips for everyday parenting challenges
Because sometimes the most helpful thing a parent can hear is “This is normal—here’s what to try.”
Trusted Guidance for Every Stage
Parenthood may not come with instructions, but Dr. Harvey Karp’s expert advice comes pretty close!
Inside the Happiest Baby App you’ll find Dr. Karp’s trusted parenting guidance delivered in simple, practical ways designed for real life.
Explore:
- Short expert videos from Dr. Karp
- Thousands of articles from Happiest Baby
- Practical tips for everyday parenting challenges
Because sometimes the most helpful thing a parent can hear is “This is normal—here’s what to try.”
Personalized Insights for Your Baby
Every baby has their own rhythm. The Happiest Baby App helps you track daily activities so you can quickly see what’s working and what your baby needs.
Track in one place:
- Sleeping
- Feeding
- Pumping
- Diapers
- Growth
Simple timelines and charts make patterns easy to spot—so routines feel less like guesswork.
Personalized Insights for Your Baby
Every baby has their own rhythm. The Happiest Baby App helps you track daily activities so you can quickly see what’s working and what your baby needs.
Track in one place:
- Sleeping
- Feeding
- Pumping
- Diapers
- Growth
Simple timelines and charts make patterns easy to spot—so routines feel less like guesswork.
Smart Guidance 24/7
Parenting questions don’t follow office hours—so the Happiest Baby smart assistant is here 24/7.
Powered by Dr. Karp’s research and your baby’s tracked data (sleep, naps, feeds), it delivers personalized guidance when you need it most.
Ask things like:
- Why is my baby waking every hour?
- Is this a sleep regression?
- How can I extend naps?
Smart Guidance 24/7
Parenting questions don’t follow office hours—so the Happiest Baby smart assistant is here 24/7.
Powered by Dr. Karp’s research and your baby’s tracked data (sleep, naps, feeds), it delivers personalized guidance when you need it most.
Ask things like:
- Why is my baby waking every hour?
- Is this a sleep regression?
- How can I extend naps?
Support That Grows With Your Child
Your little one changes quickly—and so do the questions parents have. The Happiest Baby App delivers guidance that evolves with your child so you can navigate every stage with confidence.
Newborn
- Soothing fussiness
- Sleep foundations
- Feeding guidance
Baby
- Sleep schedules
- Developmental milestones
- Starting solids
Toddler
- Sleep transitions
- Tantrums & tricky behavior
- Building healthy habits
Support That Grows With Your Child
Your little one changes quickly—and so do the questions parents have. The Happiest Baby App delivers guidance that evolves with your child so you can navigate every stage with confidence.
Newborn
- Soothing fussiness
- Sleep foundations
- Feeding guidance
Baby
- Sleep schedules
- Developmental milestones
- Starting solids
Toddler
- Sleep transitions
- Tantrums & tricky behavior
- Building healthy habits
Make Your SNOO Even Smarter
SNOO helps babies sleep better. The Happiest Baby App helps you understand why. When connected to SNOO, the App unlocks powerful tools that help you get the most out of every nap and night. Whether you're a first-time or secondhand SNOO user, the Happiest Baby App helps you get the most out of every night.
With a Premium Subscription you can:
View SNOO Logs & Sleep Reports
Lock SNOO on Baby's favorite level
Customize SNOO's Motion Start Level
Customize SNOO Responsiviness
Activate SNOO Sleepytime Sounds
Ease transition with SNOO Weaning Mode
Use SNOO Car Ride Mode
Control Multiple SNOOs
Finally, an App That Actually Helps
Typical Baby App
Generic, one-size-fits-all advice
No proven methodology
Static content libraries
More searching, less clarity
Happiest Baby App
Personalized guidance for you baby
Based on Dr. Harvey Karp's science-backed methods
Adapts as your baby grows
Real answers—not endless articles
No SNOO?
No problem.
The Happiest Baby App was designed to help you better understand your child.
Whether you use SNOO or not, the App gives you powerful tools to track your baby’s day (sleep, feeding, diaper changes, etc.), learn what works, and get guidance when challenges arise.
Expert Guidance That’s Less Than the Cost of a Sleep Consultation
Premium Subscription plans that work for every family.
Monthly
$19.99Billed monthly.
Auto-renews until canceled.
6-Month
$99.99 ($16.67/mo)Save over 15% compared to Monthly plan.
Billed every 6 months.
Auto-renews until canceled.
12-Month
$149.99
($12.50/mo)
Save over 35% compared to Monthly plan.
Billed every 12 months.
Auto-renews until canceled.
Subscriptions are available as an in-App purchase, not on this website. Manage or cancel any time in the Apple App Store or Google Play Store. Canceling ends future renewals. For refunds, see Apple or Google policies.
Download the App
Premium Subscription includes:
Personalized parenting guidance
Baby tracking tools
Dr. Karp's expert videos
Thousands of parenting articles
Personalized insights
SNOO integration and sleep analytics
Savings That You Can Feel Good About
Typical Sleep Consultation
$200-500
per session
Happiest Baby App (12-Month Plan)
$149.99
per year
Trusted by Parents Worldwide
For decades, Happiest Baby has helped families calm crying, improve sleep, and build healthy routines. Now that same expertise lives in your pocket.
700K+
Downloads
Created by
Dr. Harvey Karp
800M+
Hours of Sleep
Amazing App and Excellent Features. I have this all paired with the Snoo and absolutely love the features and knowledge base that comes with it.
z1x2stephThe app has easy features to control the snoo. I especially like the log of sleep. I also like the ability to turn on the snoo with my phone.
Liliana PascuzziIt’s so easy to use and takes a lot of the mental load off tracking everything. I especially love that it automatically tracks my baby’s sleep when the Snoo turns on and off — such a helpful feature during those tired newborn days. Highly recommend for any Snoo parents!
Katie PymBest tracking app (for any kind of tracking) I’ve ever used. Has buttons to clock events for you, or you can enter manually. And the timers continue to run in the background while you use other parts of the app. Theyre not easy to accidentally clear, either, which is great. I really like the daily log on the track to visualize the day, too. I also like the charts it produces to show daily progress.
mollyzzzzzzThis app keeps you so organized in the baby chaos and offers tips for caring for the little one. Track your pumping, feeds, diapers, and sleep all in one place
👵🏼🥟I used to fumble with multiple apps for nursing, diaper changes, etc. this app has everything you need to keep up with your baby’s needs! Also, I love being able to increase or decrease the soothing speed from my phone.
Tony.W.HGreat app for tracking. We use the data to complete check in documents at the pediatrician’s office. Also very useful for putting in our desired settings for the snoo.
VinceIrv
FREQUENTLY ASKED QUESTIONS