Willo - Baby Tracker & Sleep
Feeding, Naps & Baby Growth
Only for iPhone
Free · In‑App Purchases
iPhone
You're doing better than you think.
Willo is the baby tracker and parenting app made for tired moms, dads, and caregivers who want calmer days, better baby sleep, and more confidence in early parenthood. Built for newborns through age 6, Willo turns the chaos of baby development into something you can actually understand.
35 Developmental Phases, Not a Mystery:
Willo maps your baby's first six years into 35 named developmental phases. Each one explains what is happening in your baby's brain, body, sleep, and mood, so you can stop guessing why things changed overnight. Ahead of every sleep regression, fussy week, and growth spurt, Willo gives you a heads up and a plan.
A Baby Tracker That Actually Gets It:
Log moods, track bedtime routines, celebrate milestones, and watch your baby's journey unfold on a personalized daily home screen. Willo is the baby milestone tracker and baby development tracker parents keep coming back to, because it speaks to how you feel, not just what your baby did.
Willo AI: Your 24/7 Parenting Assistant:
Ask anything, any time of night. Willo AI is an always on parenting assistant that gives warm, science based answers about baby sleep, feeding, milestones, mood, and your own wellbeing. No more 3am Googling. No more spiraling. Just one trusted place to turn.
Sleep Sound Library for Better Baby Sleep:
Calming white noise, pink noise, womb sounds, lullabies, ocean waves, and gentle frequencies designed to help your baby fall asleep faster and stay asleep longer. A simple baby sleep sounds app built into a full parenting companion.
Bite Sized Parenting Guidance:
Short, clear daily tips matched to your baby's age and current phase. Covering sleep, new skills, emotional changes, feeding, play, and what your baby may be learning right now. No long articles, no confusing advice, just the support you need in the moment.
The Memory Book: One Photo A Day:
The new Today tab turns every day into a keepsake. Snap one photo of your baby, add a sentence if you want, and Willo automatically stamps it with the age, phase, and any milestone you logged that day. Scroll back in a year and watch your baby grow through every phase, every little face, every tiny change you were too tired to remember. Your photos stay on your device. Never uploaded, never shared, yours forever.
Mood Journal for Baby and You:
Log how your baby feels, spot patterns in the calendar view, and notice the quiet wins. Willo helps you see your baby, and yourself, more clearly.
A Village That Gets You:
Real moms, real posts, real honesty. The in app community is where you can share the highs, the hard nights, and everything in between.
Made for Parents, Not Babies:
Willo is not a toy. It is a calm, thoughtfully designed companion for the parent behind every little person. Whether you are a first time mom navigating the newborn phase, a dad running on two hours of sleep, or a caregiver looking for peace of mind, Willo brings clarity, calm, and connection to your day.
Install Willo and see how much lighter parenting can feel when you finally have a guide. Whether you have 5 minutes or 5 seconds, Willo meets you where you are.
Subscription Required:
Willo offers a free onboarding flow to help you get started. Access to all premium features, including the Baby Tracker, Sleep Sound Library, Parenting Guidance, Willo AI, and Community requires a subscription.
Disclaimer:
Willo is not a medical device and does not offer medical advice, diagnosis, or treatment. Content is for informational purposes only and should not replace professional guidance. Always consult your pediatrician regarding your baby's health or development.
Need help? Email: help@meetwillo.app
Support: https://meetwillo.app/support
Terms of Use: https://meetwillo.app/terms
Privacy Policy: https://meetwillo.app/privacy/
Bug fixes and performance improvements.
The developer, Sonora Labs LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Purchases
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sonora Labs LLC
- Size
- 118.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Willo Weekly $7.99
- Willo Yearly $34.99
- Willo Yearly $49.99
- Willo Yearly $59.99
- Willo Yearly $29.99
- Willo Monthly $13.99
- Willo Monthly $17.99
- Willo Yearly $59.99
- Willo Monthly $9.99
- Willo Yearly $39.99
- Copyright
- © 2026 Sonora Labs LLC