# The Wonder Weeks - Baby leaps — Development milestone tracker

> Baby development milestone tracker with personalized schedules and interactive features. (iPhone/iPad app by Domus Technica.)

- Source: https://appshunter.io/ios/app/the-wonder-weeks-baby-leaps/id529815782 (this page in markdown: same URL + `.md`)
- Developer: [Domus Technica](https://appshunter.io/developer/529815785)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases (on sale, was $5.99)
- Rating: 4.80/5 from 121,395 App Store ratings · 872 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 266 MB
- Languages: Korean, Dutch, Danish, German (Germany), Russian, Swedish, European Spanish, Arabic, American English, Italian and 6 more
- Released: 2012-05-30
- Data updated: 2026-09-03
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/the-wonder-weeks-baby-leaps/id529815782/reviews.md

## What is The Wonder Weeks?

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.

## Key features

- Personalized leap schedule
- Leap start notifications
- Recognize developmental signals
- Discover new baby skills
- 77 playtime games
- Personal baby diary
- Partner app linking
- Parent forum

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| 1 Month Subscription | $1.99 | per month |
| 6 Month Subscription | $4.99 | per 6 months |
| 3 Months subscription | $9.99 | per 3 months |
| 1 Month subscription | $4.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| eBook - Chapter 9 | $0.99 | one-time |
| eBook - Chapter 1 | $0.99 | one-time |
| eBook - Chapter 2 | $0.99 | one-time |
| eBook - Chapter 3 | $0.99 | one-time |
| eBook - Chapter 4 | $0.99 | one-time |
| eBook - Chapter 5 | $0.99 | one-time |
| 24 Months subscription | $34.99 | one-time |


## Chart rankings

- #106 in Top Grossing · Health & Fitness (US App Store)

## What do users think of The Wonder Weeks?

Overall sentiment: mixed

**Pros**

- 👍 Helpful for understanding baby's development
- 🤗 Provides reassurance and peace of mind
- 📆 Accurate in predicting fussy phases
- 💡 Offers activities to support baby's growth
- 🙌 Great for first-time parents

**Cons**

- 🤔 Inaccurate in predicting leaps and milestones
- 💰 Expensive with hidden subscription costs
- 📱 Poor app design and user experience
- 🤷‍♀️ Information not tailored to individual babies
- 🙅‍♀️ Difficult to share account with partner

**Commonly reported bugs**

- Crashing and login issues
- Syncing problems with calendar and data loss
- Inconsistent behavior across app updates

**Most requested features**

- Ability to adjust due date/birth date
- More personalized content and tracking
- Improved calendar and diary functionality
- Community features to connect with other parents
- Inclusion of all content without additional purchases

## Recent user reviews (10 of 872)

All indexed reviews: https://appshunter.io/ios/app/the-wonder-weeks-baby-leaps/id529815782/reviews.md

### 5/5 — Amazing App but some issues commenting

*2026-08-31, version 12.3.19*

The info in the app and book are insightful and huge help in figuring out how to help my son grow but having annoying time posting in the forum. Anytime I click the comment button my response bar disappears until I hit done. It’s very frustrating but other than that the app is incredible and make sure you read the book as well.

### 5/5 — Great for new and experienced parents

*2026-08-26, version 12.3.19*

I’ve been using this app since my first child was born over five years ago! It has helped me so much, both in mentally preparing for and better understanding those fussy periods when they’re inconsolable, and in finding ways to stimulate their developing brains. Now, I’m using it with my third and final child, and it continues to help me strengthen my bond with them.

### 5/5 — I love this app!

*2026-08-22, version 12.3.19*

I love this app! It is very helpful with explaining certain behavior at different times, to help parents understand what babies and young ones are experiencing, and gives you great ideas of things to do with your little ones during each phase!

### 1/5 — Slow

*2026-08-22, version 12.3.19*

It’s been on loading since 2025 smh

### 5/5 — AMAZING- This app is GOLD!!

*2026-08-21, version 12.3.19*

I discovered this app with my firstborn 13 years ago and was fascinated by how accurate it was. It did away with all the "wondering" I had about what my son was thinking as a baby, when he was happy or sad, etc. and told me more than I would ever know or could ever know otherwise. It was spot-on. I remembered it when I had another baby, who is just now 1 year old. Even her dad is amazed and his jaw drops every time I read to him about a current leap. It's one of the only apps that, hands down, is worth every penny of the small cost. It's literally like a psychic reading into your baby's everyday life, and that's priceless. I love that they've incorporated suggested playtime activities to do with your child to help them practice their new skills each leap--this insight also helps me know which toys she will be most satisfied and interested in if I need to get things done around the house. This app is GOLD!! Get it today!!

### 3/5 — Good

*2026-08-20, version 12.3.19*

Super helpful for a new parent. Would have been tearing my hair out wondering what I’m doing wrong without it. 

However it’s based on data from as study of like 15 babies but it acts very confident in its predictions. My baby has been early to a few of the phased even though the app refused to believe it. 

Still good though. I’d have freaked out in the first fussy phase without it because we had the most chill newborn that suddenly lost it. 

But do take it with a grain of salt and treat your baby as a variation on the small sample size. I wish they’d build on the original study.

### 1/5 — It’s just a horoscope for babies…

*2026-08-18, version 12.3.19*

If you believe in horoscopes you’ll have fun with this app because you’ll always find something that applies to your baby.

### 1/5 — Stuck in 2021

*2026-08-17, version 12.3.19*

Looks like this app hasn’t been updated or maintained much for years. The app has no dark mode so your eyes get blasted by white and yellow when you’re in a dark room.

### 1/5 — Bugs

*2026-08-17, version 12.3.19*

It would be great but every time I click something, it unclicks it  for me. I want to follow along but the app doesn’t allow me to.

### 1/5 — Didnt work

*2026-08-14, version 12.3.19*

My baby’s progression and leaps did not line up with the suggested leaps. It was a waste of time for me. I did enter her due date and set it up correctly.

## Frequently asked questions about The Wonder Weeks

### What is The Wonder Weeks app?

The Wonder Weeks app is a baby development milestone tracker that helps parents understand their baby's behavioral changes, such as increased crying or clinginess, which are linked to mental development leaps. It provides a personalized schedule of these leaps and offers tools to support your baby's growth.

### How does the app track baby development?

The app uses a personalized leap schedule based on your baby's due date to predict when developmental leaps will occur. You receive notifications for upcoming leaps and can learn to recognize the signals your baby gives. It also includes a personal diary to log your baby's development and track new skills.

### Is The Wonder Weeks app free to use?

The app is free to download and offers some features, but it also includes in-app purchases for full access to all content and functionalities. This allows users to try out basic features before committing to a purchase.

### What are the benefits of using this app for parents?

The app aims to increase parental confidence by demystifying common baby behaviors associated with developmental leaps. It provides practical advice, offers 77 playtime games to stimulate new skills, and connects parents through a forum to share experiences and ask questions.

### Can I share my baby's progress with my partner?

Yes, the app allows you to link it with your partner's app. This enables both parents to keep track of your baby's developments together, ensuring you are both informed and can support your child's milestones as a team.

## Version history (last 5 releases)

### 12.3.19 — 2026-08-13

We’ve made a few minor improvements and fixed some bugs for a better app experience.

### 12.3.18 — 2026-08-03

We’ve made a few minor improvements and fixed some bugs for a better app experience.

### 12.3.17 — 2026-07-21

We’ve made a few minor improvements and fixed some bugs for a better app experience.

### 12.3.16 — 2026-06-15

Bugfix and performance improvements

### 12.3.15 — 2026-05-29

Bugfix and performance improvements

## Apps similar to The Wonder Weeks

| App | Rating | Price | Category |
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## More apps by Domus Technica

- [The Wonder Weeks - Audiobook](https://appshunter.io/ios/app/the-wonder-weeks-audiobook/id1109313007)
- [The Wonder Weeks: baby monitor](https://appshunter.io/ios/app/the-wonder-weeks-baby-monitor/id1449460046)
- [The Wonder Weeks - Back To You](https://appshunter.io/ios/app/the-wonder-weeks-back-to-you/id1538745887)

All apps by Domus Technica: https://appshunter.io/developer/529815785

## Related topics

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*