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The Wonder Weeks

RequirementsCompatible with iPhone and iPod touch. Requires iOS 3.0 or later.

Customer Ratings

As of December 11, 2024
     
112,967 Ratings

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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.

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To install apps directly onto this device, it must be jailbroken with AppSync installed.
2.0
Requires iOS 3.0+
May 31, 2012
2.9 MB Install Download
4.3.2 (4)
Requires iOS 7.0+
9.1 MB Install Download

Chart History

Top Paid View chart ›
Peaked at #12 (May 30, 2023) · 169 archived captures · Dec 2013 – May 2023
Top Paid · Health & Fitness View chart ›
Peaked at #1 (June 24, 2021) · 27 archived captures · Jun 2021 – Sep 2021
Top Paid · Health & Fitness · iPad View chart ›
Peaked at #1 (July 11, 2021) · 27 archived captures · Jun 2021 – Sep 2021
Top Grossing · Health & Fitness View chart ›
Peaked at #85 (June 26, 2021) · 26 archived captures · Jun 2021 – Aug 2021
Top Grossing · Health & Fitness · iPad View chart ›
Peaked at #150 (July 11, 2021) · 7 archived captures · Jun 2021 – Aug 2021

Ratings Over Time

DateVersionRatingRatingsPrice
December 9, 2018 — ★ 4.9 34,552 $2.99
December 5, 2020 — ★ 4.9 71,341 $3.99
December 5, 2023 11.2.7 ★ 4.9 107,015 $5.99
December 7, 2023 11.2.7 ★ 4.9 107,070 $5.99
December 9, 2024 12.2.0 ★ 4.9 112,939 Free
December 11, 2024 12.2.0 ★ 4.9 112,967 Free

From archived App Store listing data, captured by the Wayback Machine.

Archived Reviews

8 of 15
Save your money
     
by Lkjgd2026 · June 30, 2026

Not worth it Al all. Same info you can get for free and you have to pay before you can see anything.

BEST PARENTING BABIES APP EVER!
     
by B Wurm · June 11, 2026

I have used this app for all 4 of my children now and I swear by the accuracy of the leaps! I love the suggested activities to enhance each leap and the skills baby is learning! Knowing potential reasons behind the “storms” is very helpful, especially to prepare a bit in advance for them! The app has been spot-on for the most part with the timeline for every single baby!!

My baby bible
     
by kikigc14 · July 2, 2026

This book has helped me understand my baby during her leaps with her fussy phases as well as learning new skills. I am always keeping track of her leaps with my book and the app. Both work great together.

Use with Caution
     
by ___Mason___ · June 10, 2026

This is not always accurate. All babies are completely different and develop at different times so don’t count on this being accurate timeframes. My daughter was about 2 weeks later than claimed and would not be in the fussy phase for as long as it claims. As a FTM, this honestly made me a little more anxious than anything.

I do not get the hype around this app
     
by Purple penguins34 · June 9, 2026

I purchased this app based on a recommendation from my sister in law. I do not find it that helpful. Yeah it tells you when a “leap” is about to happen but that’s it. I do not get the app that much and why parents like It. I regret purchasing it and will not renew.

The only app you need
     
by Mkioplbhuy · June 22, 2026

I literally use this app as a baby book. This is my favorite app in the entire world.

Amazing!
     
by Elleporter1214 · July 8, 2026

I first started with the book with my first baby in 2015. It is so incredibly helpful for every baby but especially baby #1. Knowing that those fussy phases are normal and they will end is such a relief and a total game changer. When the app came out I was over the moon. Still consistently rely on this information now with baby #5 and I recommend it to all my new mom friends. Thank you for this research and this app!

The English version of the app is bad
     
by Quinnythe poo · June 13, 2026

Explanations are not very understandable. No good examples and very weird phrases. (If the child is “naughty”, talkies about a one year old)

Period reviews recovered from Apple's customer-review feeds via the Wayback Machine.