AppBrain
AppBrain
  • Apps
  • Apps being viewed right now Trending apps today Most popular apps All-time most installed apps Top rated apps iPhone and iPad apps
  • Intelligence ▾
    Intelligence overview → Track any Android app or your whole market
    Track & analyze
    Keyword Tracker & OptimizerTrack & improve Play rankings App Performance ReportOne-off PDF for any app StatisticsFree Android & Play market stats
    Promote your app
    Featured Apps App Links
  • Intelligence
  • Pricing
  • Dashboard
  • Sign up
  • Log in
App Store Apps > Health & Fitness > Baby Tracker & Sleep: Willo
Baby Tracker & Sleep: Willo icon

Baby Tracker & Sleep: Willo

by Sonora Labs LLC · Health & Fitness · Free
On the App Store since August 2025 · Data updated 2026-10-17
App Store

Baby Tracker & Sleep: Willo is made and published by Sonora Labs LLC. AppBrain is an independent app data site and isn't affiliated with Sonora Labs LLC. The app name, icon, screenshots and description belong to Sonora Labs LLC and are shown as published on the App Store.

AppBrain's verdict

Loved by users
Rating on App Store
4.86
395 ratings
Last updated
October 8, 2026

Users love it: 4.9 stars from 395 ratings.

Rankings

App Store top charts

App Store Rankings for Baby Tracker & Sleep: Willo

This app is not ranked

Releases

Updates seen on the App Store
Version
2.0.8
Launched
August 2025

No changelog data

User feedback

Ratings and reviews on the App Store

Comments on Baby Tracker & Sleep: Willo for iOS

We don't have enough comments to show example comments. Please check back later.

Technology

Found in the app by AppBrain
Price
Free
App size
107.7 MB
Content rating
Everyone

Technologies used by Baby Tracker & Sleep: Willo

About the app and developer

About Baby Tracker & Sleep: Willo

Baby Tracker & Sleep: Willo is a health & fitness app developed by Sonora Labs LLC.

User Ratings

Baby Tracker & Sleep: Willo is rated 4.86 out of 5 stars. The rating is based on 400 ratings.

App Information

Baby Tracker & Sleep: Willo is freely available from the App Store. The app size is 107.67 MB. The latest version available is 2.0.8. The last update was on October 8, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since August 2025.

Developer information for Sonora Labs LLC

Sonora Labs LLC

Address:

Frequently asked questions about Baby Tracker & Sleep: Willo

Is Baby Tracker & Sleep: Willo free?

Yes. Baby Tracker & Sleep: Willo is free on the App Store.

Is Baby Tracker & Sleep: Willo still available?

Yes. Baby Tracker & Sleep: Willo is on the App Store, and the last update we saw was on October 8, 2026.

How large is Baby Tracker & Sleep: Willo?

Baby Tracker & Sleep: Willo is 107.67 MB.

Is Baby Tracker & Sleep: Willo suitable for children?

App Store rates the content of Baby Tracker & Sleep: Willo as suitable for everyone.

How do people rate Baby Tracker & Sleep: Willo?

Baby Tracker & Sleep: Willo scores 4.86 out of 5 stars, from 395 ratings on the App Store.

Who made Baby Tracker & Sleep: Willo?

Baby Tracker & Sleep: Willo was developed by Sonora Labs LLC. It is listed in the health & fitness category on the App Store.

Share Baby Tracker & Sleep: Willo

Store listing

By Sonora Labs LLC, from the App Store
Baby Tracker & Sleep: Willo Screenshot 1 of 10
Baby Tracker & Sleep: Willo Screenshot 2 of 10
Baby Tracker & Sleep: Willo Screenshot 3 of 10
Baby Tracker & Sleep: Willo Screenshot 4 of 10
Baby Tracker & Sleep: Willo Screenshot 5 of 10
Baby Tracker & Sleep: Willo Screenshot 6 of 10
Baby Tracker & Sleep: Willo Screenshot 7 of 10
Baby Tracker & Sleep: Willo Screenshot 8 of 10
Baby Tracker & Sleep: Willo Screenshot 9 of 10
Baby Tracker & Sleep: Willo Screenshot 10 of 10
Screenshots by Sonora Labs LLC, from the the App Store listing
Description by Sonora Labs LLC Written by the developer, not by AppBrain. Click to read.
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/
Official page on the App Store
Popular Health & Fitness Apps Price drops on Google Play Apps other people are watching Today's trending apps Top new apps
More hot apps 🔥
Overview Reviews Rankings Technology
AppBrain Intelligence premium content

Subscribe now to get full and unlimited access to AppBrain Intelligence. You'll have access to:

  • App Intelligence dashboard (performance timeline, competitor comparison, country rankings, insight cards)
  • Detailed ranking data per app
  • Full timeline per developer
  • Device market shares data per country
  • Unlimited keyword tracking
1 Month

$75/mo
(billed every month)

SAVE 0%
Subscribe
3 Months

$65/mo
($195 billed every 3 months)

SAVE 13%
Subscribe
1 Year

$57.50/mo
($690 billed every year)

SAVE 23%
Subscribe
Each subscription will automatically renew 3 days before the expiration date for the same time period. Subscriptions can be cancelled at any time before the renewal.

AppBrain is an app data site, we track rankings, ratings, installs for all apps and games on Google Play and the App Store. AppBrain doesn't host app files or APKs, all install links go directly to the official store. All trademarks are owned by their respective owners. As an Amazon Associate AppBrain earns from qualifying purchases.

More apps

  • Top Android apps being viewed
  • JoinFootLove stats
  • Alarmy - Alarm Clock & Sleep
  • Flow Homescreen Android App

App statistics

  • Android statistics
  • Google Play Developer stats
  • Trending Android Apps
  • Trending iOS apps
  • Top popular Apps
  • Buy the best Android phone
  • Buy & sell app businesses

About AppBrain

  • Contact
  • Privacy
  • Documentation
  • DMCA takedowns
  • Articles
  • Blog
  • Android app Install tracking and attribution options for the AppBrain ad network
© 2010-2026 - AppBrain