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 - Benefit from a baby monitor with 4G wireless connectivity, including interesting information about sleeping patterns.
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.
Updated on
28 Jul 2025
Parenting
Data safety
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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
See details
Ratings and reviews
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3.0
2.56K reviews
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Kaylah Jendrusina
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23 September 2025
Not only is the app super helpful, their customer service is as well. I had purchased the app 2 years ago before they switched to subscription based. When I had my second baby I wanted to use the app again but couldn't access my account because I had a new phone. I emailed customer service and Miranda helped me sort things out very quickly.
The Wonder Weeks
24 September 2025
HI Kaylah, thanks for the review! We are glad that you enjoy the app! Also we are happy that our support was able to help you, we always try to restore the old access and are glad that we where able to help you.
Meghan
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19 August 2025
Not Worth It. It was nice to see what skills to look forward to, but the update has just made the app absolutely terrible. There's way too much going on, and now they don't let you go forward in leaps to check off skills even though some kids develop at different paces. Just Google the leaps if you care about fussy phases or skills.
1 person found this review helpful
The Wonder Weeks
21 August 2025
Hi Meghan, 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.
Aksaa Rehman
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29 September 2025
not a great experience at all, disappointed to have spent so much money. it was helpful at first in the early stages, however during the 2nd leap, it was completely off. my little one was showing 'fussy' signs during what was supposed to be the calm phases and showing calm signs during the "fussy leaps". it was confusing, disheartening and incredibly overwhelming!!! I wouldn't recommend, instead I found that a quick Google search and Gemini was more useful to find relevant information.
The Wonder Weeks
30 September 2025
Hi Aksaa, it's possible that your baby started a leap earlier, but that doesn't necessarily mean the next leap will start earlier. Please email us at support@thewonderweeks.com for more information about the duration and timing of leaps. We’re here to help!