• This has been a life saver for me! Being a first time, it’s been great to understand where she is in her development and why she is fussy or happy. Sep 16, 2019

  • I am so confused on what this is. It was highly recommended by two people to me and I don’t find it helpful at all. Sep 13, 2019

  • How do I make it when my baby’s screaming realize she’s going through a leap and I know it will come to an end soon! I wish this app could tell me toddler leaps to! It’s my favorite Sep 12, 2019

  • Helped me understand why my baby was acting differently and honestly made me more compassionate. Surprisingly accurate with dates. Was informative and great to have at the touch of your fingertips. Sep 10, 2019

    • Jen L.

    • New Orleans, Louisiana

    It’s been proven the Wonder Weeks and leaps aren’t real. What a waste of money. Wish I’d done more research before buying. Sep 05, 2019

    • Leah D.

    • Melbourne, Florida

    This app is scary accurate and gave me such relief and peace of mind when going through some fussy times. Aug 27, 2019

  • I appreciate this app because it allows me to realize what my baby is going through, so it is easier to be patient through the rough times. Really helps you learn so much about their development. May 29, 2019

  • Spot on for baby development! Great information about baby leaps and useful articles and quick videos about what baby is learning and experiencing. May 01, 2019

  • Lets me know when my son will be heading into a leap. Apr 20, 2019

    • Tina D.

    • Palos Verdes Estates, California

    Helped me keep my sanity when going through growing pains of new baby! Mar 19, 2019

    • Jennifer P.

    • Feasterville Trevose, Pennsylvania

    This has been very helpful as a first time mom. It also has been very accurate. My daughter has been right on target with her developmental milestones and it prepares me for "stormy" periods haha. Feb 22, 2019

    • judy T.

    • San Diego, California

    Good app to track leaps and milestones. It's helpful when your baby is extra needy and fussy and I'm not sure if he's going thru a leap or if he's sick. The app gives you a good summary. Feb 12, 2019

    • Zoe S.

    • Apex, North Carolina

    This is a fine, typically accurate, app but it specifically says that it is best when used WITH The Wonder Weeks book. It is fine for general info but seems like it would be much better with the book. Jan 04, 2019

  • Everyone in every mommy group swears by this. I found it confusing and less then helpful. The leaps didn’t match up with my child at all Nov 03, 2018

  • This app is a lifesaver! If you're ever wondering why your baby is acting weird, just check the app and see if they're in a leap! It's great to be able to see what your baby is learning Oct 21, 2018

    • Cara Z.

    • Washington, District of Columbia

    I don't think anything ever lined up on this app. For us it felt made up and not true. I've read articles in line with this since downloading. Sep 07, 2018

  • I love reading about what baby is going through and knowing when she’s going through it. It has been very accurate and helpful to our little family Jul 22, 2018

  • This app is beyond amazing. At first I must admit I was hesitant but its pretty spot on with my little ones development. Jul 03, 2018

  • This is great for those early months when its hard to see how much your newborn really is developing. May 11, 2018

  • I like to know when a leap is coming and more about the leap - but it seems like you really have to buy the book May 02, 2018

  • I am not religious in checking but check in between when I think we might be on a leap and most of the time it’s fairly accurate. I like it. Apr 13, 2018

    • Erin P.

    • Chelan, Washington

    This is great. It always seems to be fairly accurate and informative. Mar 03, 2018

  • The app isn’t fantastic, too many in app purchases. BUT the wonder week concept is so so real. I definitely am a wonder week’s believer, I’m just not sold on the app Feb 03, 2018

  • This has helped me understand a lot about my sons milestones and changes. I just wish some it were a little more “watered down”. The verbiage is sometimes hard to read/comprehend. Jan 29, 2018

    • Ali B.

    • Cleveland, Ohio

    Interested theory! Jan 29, 2018

  • I like how this app helps you determine why you’re Baby is acting fussy during certain times and helps you understand what they’re going through and how they’re learning new skills. Jan 25, 2018

  • Love this app. Helpful for understanding babies development and specific activities to help your baby get through various developmental phases. Jan 21, 2018

  • Worth every penny!!! Even the add on chapters are worth it, especially if you're a development nerd like me. This app prepares you for growth spurts and helps you feel less crazy on the hard days! Jan 16, 2018

  • I just didn't get it. Weeks didn't match up for me and even if they did, I just didn't find the information all that helpful. Jan 12, 2018

  • Not worth it! Very little information. I don’t quite believe what they say. Jan 02, 2018

    • Cassie J.

    • Mount Holly, North Carolina

    Meh, concept is interesting despite its shaky science. Seems like fussy behavior always explained by going into a wonder week, in one, or just finished. Developmt based on gestational age. Skip this. Jan 01, 2018

  • Helpful app, especially when used with the companion book. My babies haven't gotten fussy or clingy for some leaps, but they have been marking the milestones described. Helpful to see what's coming! Dec 29, 2017

    • Kitsey H.

    • Boonville , North Carolina

    Great information on this app about baby's development. Dec 01, 2017

  • This app has helped us understand what our little one is going through, by pointing out when his developmental leaps are taking place and what is changing for him. Very accurate! Nov 02, 2017

  • This app is a life saver! When you're at a loss for your childs' current behaviors, this app tells you what is going on developmentally with your little one! It takes some of the guessing game out! Oct 12, 2017

  • lets you know when you baby should be going through leaps which make them cranky Oct 12, 2017

  • Sometimes after being up all night with a cranky baby I would check this app and it would be right on. Helpful hints and ideas for dealing with the stages. So worth the price! Oct 05, 2017

  • LOVE LOVE LOVE LOVE THIS!!!! Definitely helped explain my daughters behavior. Aug 11, 2017

  • Want to know when your baby's about to be a raging a**hole? Get this app. Joking aside, this app helped me find activities to help guide my child through her "leaps" and alerted me to fussy phases. <3 Mar 31, 2017

  • Really enjoy reading what to expect, and how to help baby through the leap. Nov 13, 2016

  • This app has been a lifesaver in helping me figure out what is going on with my little. I definitely recommend it. Oct 18, 2016

    • Kelsey L.

    • Mount Pleasant, South Carolina

    I use this app so much! It is so comforting to be able to see why my baby is so fussy at certain times, and offers tools for me to help her through the milestones and learn important skills! Oct 11, 2016

  • a great reference for stages, growth spurts and learning milestones. Gives great ideas on what to look for and do to help child through each stage Aug 17, 2016

  • Helpful info! Aug 16, 2016

  • Don't love it, don't hate it. It's definitely not worth the hype or price in our case. Babies go through fussy and clingy phases, that's about all I got from this app. Aug 05, 2016

    • Dulce D.

    • United States of America

    This app is amazing! love knowing the next things my son will be learning/experiencing! Feb 17, 2016

  • This app and book made me feel less crazy when my lady baby changed her behavior overnight and for seemingly no good reason. Sep 28, 2015

    • Taryn W.

    • Philadelphia, Pennsylvania

    the app has been so helpful. SPOT ON and helps us know what to expect May 05, 2015

    • Luna S.

    • San Leandro, California

    It's okay. Not totally spot on for my boy but it is interesting. Apr 21, 2015

  • favourite baby book! Feb 24, 2015