App Report, Store and Ranking Data
The Wonder Weeks

The Wonder Weeks


Understand why your baby cries

United States United States
last update
Wed, Nov 16, 2022


The #1 baby app worldwide! Understand why & when your baby suddenly cries more than usual, is not themselves and… what you can do to help. 

Your baby is suddenly crying all the time, clinging to you, and you ask yourself what is wrong. The good news is that this fussy crying phase is a sign of progress in the brain! 

Millions of parents have gone before you in following, supporting, and encouraging the 10 leaps in the mental development of their baby or babies. It is with good reason that Apple has declared it to be in the top 10 of the “Best sold apps in 2018, 2019 & 2020”

- Learn all about the 10 mental leaps with tips, tricks & mind-blowing insights. 
- Your unique personalized leap schedule shows when a leap starts and ends, and… it counts down for you. 
- Discover how you can give your baby the help they need during the various stages of a leap.
- Know when you can expect new skills. 
- Keep track of your baby’s development and milestones in the diary.
- Gain insight into your baby’s perception of the world. 
- Experience the world through your baby’s eyes. 

- Over 350 extra milestones to keep track of in your diary 
- Baby monitor: Wi-Fi 4G (INCLUDING 7 chapters on sleep from the book)
- E-Book (in full or per chapter)
- Audiobook (in full or per chapter) 
- Music to lull your baby to sleep (white noise & music)

- Declared by Apple to be in the top 10 “Best sold apps in 2018, 2019 & 2020”
- Most downloaded paid app in Health and Fitness
- Award for “Coolest App for Moms”
- “Choice & Gold” Award from users, MumIi
- AppRx Awards Top 10 “Children’s Health App”
- NHS (UK) – “Best App for Parents”

Especially for parenthood. The baby tracker for your baby’s leaps in their mental development. You can keep track of your baby’s milestones and your baby’s growth in our The Wonder Weeks! baby tracker. A leap for you and your baby.

Disclaimer: This app has been developed with the greatest of care. However, neither the developer, nor the author is liable for any damage caused by inaccuracies or incompleteness of the app.

Review Breakdown

Download & Revenue

DOWNLOAD 57KNov 2022Worlwide
REVENUE$308.9KNov 2022Worlwide



Mentally prepping for a leap saved my sanity!

I loved this app and will definitely use it with future babies! It helped me mentally prep for leaps and know how to help her get the most out of them. A friend recommended it to me when I was pregnant and now I recommend it to all my soon to be parent friends!

DkonaszewskiSun, Dec 4, 2022
United StatesUnited States

Love this app!

I love this app! It’s always spot on with my kiddos and their developmental leaps! I love documenting what they went through in the process of growing!

lauralips534Sun, Dec 4, 2022
United StatesUnited States


This app has saved my sanity. As crazy as that actually sounds, I know when my boy is going through a leap. I know why he’s fussy or needing extra cuddles then usual. I also know how to help him during his skills time and help his brain grow even more. Seriously in love with this app!!

roseieieieSat, Dec 3, 2022
United StatesUnited States


It is useless.

toni2234567Sat, Dec 3, 2022
United StatesUnited States

Don’t hesitate! Buy it now!

I love this app. We have been using it since our little one arrived home from the NICU and everything has been so spot on. Thank you so much for giving us that peace of mind to know we aren’t bad parents; our kid is just going through a developmental leap.

Its.CurtSat, Dec 3, 2022
United StatesUnited States


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What's new

2 weeks ago
We have added a new feature that allows you to discover the leaps in an entirely new way with your child! For each leap we have added several games that you can do together with your child to help develop the matching skills. In addition, we have added an animation for leap 1, to provide a brief explanation of what this leap is about. Have fun with the app!