The Wonder Weeks - Baby Leaps

In-app purchases
3.86K reviews
Content rating
PEGI 3
500K+
Downloads
Content rating
PEGI 3
Users Interact
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About this app

The world’s No. 1 baby app! Understand why your baby cries more at certain times, isn't himself or herself and... what you can do to help.

During our research, which began in 1971 with Jane Goodall and the chimpanzees in Tanzania, we discovered that babies are more prone to cry and to be clingy or cranky from time to time. This behavior was shown to be related to a leap in the baby's mental development. More specifically, babies go through 10 mental leaps in the first 20 months of their life. A leap may be tough, but it's a positive thing: it gives your baby the opportunity to learn something new.

Use The Wonder Weeks app to:
- See when a leap starts and ends thanks to a personalized leap schedule
- Be automatically notified when a leap is about to start
- Learn to recognize the leaps based on the various signals your baby gives
- Discover the new skills your baby develops with each leap
- Stimulate your baby's new skills with 77 playtime games
- Keep track of your baby's development in your personal diary
- Link the app to your partner's app to keep track of your baby's developments together
- Share your experiences and ask questions in the forum
- Watch fun and interesting videos about parenting
- Complete fun polls and find out what other parents think about certain topics


Our mission is to help parents gain confidence in the face of the greatest leap in life: having a baby. We take a candid look at parenting, shed light on all sides and are there for all parents. We can all help each other and learn from each other.

Millions of parents before you have already followed, supported and stimulated the 10 leaps in the mental development of their babies. It's not a coincidence that we have been one of the best-selling baby apps worldwide for many years!

Disclaimer: This app has been developed with utmost care. Neither the developer nor the author is liable for any damage resulting from inaccuracies or omissions in this app.
Newborn milestones & Baby development leaps | Leap days tracker, schedule & tips
Updated on
Sep 28, 2026
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, Personal info and 4 others
  • This app may collect these data types
    Personal info, Photos and videos and 3 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

3.85K reviews
Niki N
June 10, 2024
While useful for newborns, it gets less and less helpful as your child grows as everyone is on different development trajectory. I think it is helpful for first 6 month especially if you are a new parent, but beyond that it's just confusing as some skills are completely unrealistic for many babies of that age and brings more anxiety than usefulness. I have an older version of this app and paid £6, which is fair deal, but would not pay more.
9 people found this review helpful
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The Wonder Weeks
June 26, 2024
Hi, we work really hard on our mission to empower parents worldwide and are truly sorry to hear that we’ve fallen short of the mark in your case If you have any suggestions for improvement, we'd be happy to hear them at support.android@thewonderweeks.com
Hazel
April 10, 2025
It's not very easy to navigate if you're wanting to look at any other leap other than the one you're baby is currently in. Although the information about the leaps are interesting and the animations videos are great, I don't think I'd recommend. We barely look at it. The app basically is a tick list of things your baby may do at certain times... but they might not because all babies are different and develop different skills at different times due to their personalities and experiences.
12 people found this review helpful
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The Wonder Weeks
April 11, 2025
Hi Hazel, we work hard to empower parents worldwide, and we're truly sorry to hear that we didn't meet your expectations. If you have any suggestions for improvement, we’d love to hear them. Please email us at support@thewonderweeks.com.
Allie
July 29, 2024
Was great at the start, I've had for about 3 months now but this paid subscription is utter nonsense, how can you expect parents to pay extortionate prices for a subscription when they have enough to pay out for as it is. This is just greedy, it was brilliant when it was just £6 to buy the app and should go back to the way it was before, guess the £6 wasn't enough so you want to extort more money from parents😠
35 people found this review helpful
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The Wonder Weeks
August 2, 2024
Hi! If you already bought the app, you should not be asked to pay again indeed. We did update the app to a subscription but since you already paid, please reach out to us at support.android@thewonderweeks.com and we can help you to use the app without paying again.

What’s new

We’ve made a few minor improvements and fixed some bugs for a better app experience.