The Wonder Weeks worldwide bestselling baby app is a personalized weekly calendar of your baby’s mental development that will keep you informed about the leaps and bounds and the fussy phases of your baby.

- Keep track of your baby’s mental development
- Learn all about the leaps and bounds and the fussy phases of your baby
- Read the bestselling Wonder Weeks book here in this app
- Take notes about a range of topics in a comprehensive diary
- The leap-alarm service
- The calendar sync option to show the leaps in your agenda

- A full HD 4G / WIFI baby monitor
- The complete Audiobook of the Wonder Weeks (English)
- The compete eBook of the Wonder Weeks in several languages
- a proven white noise library to help you baby doze of
- a proven library of classical music and sounds to help you baby relax
- Extra content such as over 400 milestones and over 200 games and activities.

International experts on The Wonder Weeks:
 “This is a very practical and entertaining window into the baby’s first year and a half. van de Rijt and Plooij have observed and found the vulnerable times in an infant’s development that I independently came to in my research. The authors’ observations and practical suggestions are wonderful.”
 -T. Berry Brazelton, M.D., professor emeritus, Harvard Medical School

"Anyone who deals with infants and young children will want to read The Wonder Weeks. This book will open parents' eyes to aspects of their children's growth, development, changing behavior, and emotional responsiveness that they might otherwise not notice or find puzzling and distressing."
 -Catherine Snow, Ph.D., Shattuck Professor of Education, Harvard Graduate School of Education

This App is developed with the greatest care. Neither the developer nor the author shall nevertheless be liable for any damages arising from any inaccuracies or omissions in this app.

What’s New

Version 9.1

Minor improvement

Ratings and Reviews

4.8 out of 5
386 Ratings

386 Ratings

em_hd ,

accurate detailed really helpful for new parents

this app is accurately predicting mental leaps, some are less noticeable but some are really huge and overwhelming if you are not prepared. My baby is now 33 weeks, things have been quite calm in the past two months but this week he’s going through some big gross motor development changes all of a sudden he’s like a completely new little human being, he’s showing the first separation anxiety signs, the first tooth broke through, he’s planking, he slides backwards all across the room leaving a trail of toys behind him and much more and this app has been so accurate and helps me understand more of what he is going through and giving me ideas on how to be there for him, validating his feeling and making him feel understood.

Irasema83 ,

Wonder Weeks saved our lives

Just you can’t parent without it:)

sarettablond88 ,

Don’t translate if you’re not able to do it!

Dal penultimo aggiornamento l’app è diventata incomprensibile a causa delle pessime traduzioni.
Sembra tradotta da google translate, non si capisce niente.
L’ho usata fino a settimana scorsa ritenendola una delle migliori app, cambiando i testi hanno rovinato tutto perché non sono stati in grado di tradurli accuratamente. Chiederò il rimborso dei soldi spesi

Developer Response ,

Thank you very much for this feedback, we will definitely look into this and make improvements. Thanks for keeping us sharp!
Kind regards,


Domus Technica BV
193.6 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Danish, Dutch, French, German, Indonesian, Italian, Japanese, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Turkish

Age Rating
Unrestricted Web Access
4,49 €
In-App Purchases
  1. Chapter eBook, Leap 1 1,09 €
  2. 1 Month Subscription 3,49 €
  3. Chapter eBook, Leap 4 1,09 €


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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