Willo - Baby Sleep & Growth
Sleep Sounds & Baby Tracker
Only for iPhone
Free · In‑App Purchases · Designed for iPhone
iPhone
Mom struggling with baby sleep? Willo helps parents track growth & development, calm crying, and build soothing routines with sounds, lullabies, and AI parenting tips.
Sleep-deprived? You’re not alone.
Willo is the go-to baby app for tired parents who want better nights and more peaceful days. Designed for first-time moms, dads, and caregivers of newborns and infants, Willo offers a support system to help you understand your baby’s behavior, improve baby sleep, and feel more confident in early parenthood.
Willo offers a free onboarding experience. A subscription is required to access features after onboarding:
At the heart of Willo are our 10 unique developmental “jumps”, stages that reflect the mental and emotional growth your baby is going through. These jumps help you stay one step ahead of sleep regressions and developmental changes. With Willo, you can prepare in advance, respond with calm, and feel empowered to support your baby through every leap forward.
Whether your baby is crying more, sleeping poorly, or acting clingier than normal, Willo helps you make sense of it all. No more Googling symptoms or guessing why things suddenly changed, just clear guidance to help you and your baby thrive together.
Baby Tracker for Growth and Development:
Follow your baby’s development in a way that makes sense. Our smart “jumps” guide you through each phase, with insights into emotional changes, sleep disruptions, and new skills. Know when a fussier week is normal and how to support your baby through it. Willo is the baby tracker app made for parents to understand their baby, not just tick milestones.
Willo AI: 24/7 Parenting Assistant
Ask anything, anytime. Willo AI is your always-on parenting companion, giving science-backed answers about baby sleep, feeding, milestones, emotional growth, and support for your well-being. From food questions to calming tips, Willo AI helps you feel confident and supported day or night.
Panic Button: Instant Calming Aid:
When you’re overwhelmed and your baby won’t stop crying, tap the Panic Button. It plays scientifically designed sounds that can break through crying spells and restore calm fast, for both your baby and your mind.
Soothing Sleep Sound Library:
Access calming audio including white noise, pink noise, womb sounds, lullabies, ocean waves, and peaceful frequencies. Designed to help babies fall asleep faster, stay asleep longer, and build a healthy bedtime routine. Willo is the baby sleep app trusted by parents looking for real relief at bedtime.
Bite-Sized Parenting Insights:
Get short, clear tips based on your baby’s age and current jump. Learn about their sleep, new skills, mood changes, and what they are learning now. No long articles or confusing advice, just quick support when you need it.
Support for You, Too:
Willo isn’t just a baby tracker, it’s a parenting app. Built for real life, it includes emotional support and tools to help you feel grounded and less alone. Whether you’re a first-time mom, overwhelmed dad, or tired caregiver, Willo brings peace and perspective to your parenting journey.
Made for Parents:
Willo isn’t a toy or distraction for babies, it’s a science-backed companion for parents who love them. Whether you're managing a growth spurt, handling a sleep regression, or looking for peace of mind, Willo brings clarity, calm, and connection.
Install Willo today and discover how better sleep and a calmer baby can start with better understanding.
Subscription Required:
Willo offers a free onboarding flow to help you get started. Access to all premium features, including the Panic Button, Baby Tracker, Sleep Sound Library, Parenting Guidance, and Willo AI 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-policy
We’ve made Willo even more supportive for moms and dads:
• A smarter parenting assistant with more personalized guidance
• 24/7 chat for deeper conversations and personalized parenting tips
• Bug fixes and improvements for a smoother, calmer experience
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:
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- 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
- 82.3 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Willo Weekly $7.99
- Willo Yearly $29.99
- Willo Yearly $34.99
- Willo Yearly $49.99
- Willo Monthly $13.99
- Willo Monthly $17.99
- Willo Yearly $59.99
- Willo Yearly $39.99
- Willo Yearly $59.99
- Willo Monthly $9.99
- Copyright
- © Sonora Labs LLC 2025