# Mental Leap Checker — Baby Mental Leap Checker

> Baby Mental Leap Checker (iPhone/iPad app by Akatsukido Co., Ltd..)

- Source: https://appshunter.io/ios/app/mental-leap-checker/id6743070241 (this page in markdown: same URL + `.md`)
- Developer: [Akatsukido Co., Ltd.](https://appshunter.io/developer/1801122880)
- Category: Lifestyle, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 81 MB
- Languages: American English, Japanese
- Released: 2025-03-19
- Data updated: 2026-08-10
- User reviews in markdown: https://appshunter.io/ios/app/mental-leap-checker/id6743070241/reviews.md

## What is Mental Leap Checker?

**Understand Your Baby's Growth with Confidence**
Is your baby fussier than usual? It might be a “Mental Leap.”

Suddenly crying more often?
Restless sleep or frequent night waking?
Clingy behavior without signs of illness?

These might not be problems — they might be signs of a big developmental step.

With Mental Leap, you can track your baby’s mental development and better understand the challenging yet beautiful journey of early childhood.

**What You Can Do**
- Register your baby’s birthdate or due date easily
- Manage multiple babies at once (great for siblings or twins)
- Get notified when your child is in a “leap” period
- Learn what each leap means and how you can support your baby during that time
- Simple, intuitive interface – designed for busy parents

**What is a “Mental Leap”?**
Babies experience about 10 major mental developmental leaps before 20 months of age.
These periods are often marked by changes in behavior: more crying, clinginess, sleep changes, or fussiness.
It may seem like something is wrong — but it’s actually a sign of progress in brain development.

Knowing when a mental leap is coming can help you prepare, respond with care, and reduce stress.

**Perfect for:**
- First-time parents who want peace of mind
- Parents noticing unusual behavior in their baby
- Those interested in baby development and psychology
- Families with multiple young children
- Anyone looking for a clean, reliable, and private baby tracker

**Simple, Lightweight, Reliable**
- No complex sign-up process
- Works offline (for most features)
- Lightweight and battery-friendly

**Privacy You Can Trust**
- All data is stored only on your device.
- No data is shared externally. No ads. No personal accounts needed.

Your baby’s growth is your private journey — we keep it that way.


## Version history (last 5 releases)

### 1.7.0 — 2026-08-06

• Added Remove Ads
A one-time purchase hides every banner ad in the app. Tracking, charts and all other features stay free whether or not you buy it.

• Fixed an issue where leap notifications were not delivered

### 1.6.0 — 2026-07-29

This update adds growth tracking and many other new features.

■ New
- Growth tracking: record height and weight and view them as charts, with WHO growth standard curves (P3/P50/P97) for comparison
- One-tap sleep logging with "Fell asleep" / "Woke up" buttons
- Track multiple sleep sessions per child
- Sleep alerts are now based on total daily sleep time
- Memo search now supports date-range filtering and sorting
- Added Chinese (Simplified & Traditional) and Korean

■ Improvements
- Refreshed design with new animations
- Better colors in dark mode
- Optimized layout for tablets and larger screens
- Edit forms now warn before discarding unsaved changes
- Retry directly from error screens

■ Fixes
- Fixed pull-to-refresh not working on the home screen
- Fixed some untranslated text

Thank you for using the app — feedback is always welcome!

### 1.5.2 — 2026-03-26

- fix minor bugs

### 1.5.1 — 2026-03-12

- Add dark mode
- Improve memo search and filtering

### 1.5.0 — 2026-03-11

- Add sleeping log
- Fix minor bugs

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## More apps by Akatsukido Co., Ltd.

- [CheckBuy](https://appshunter.io/ios/app/checkbuy/id6744043634)
- [年収手取り計算機](https://appshunter.io/ios/app/id6747217609)
- [MORA](https://appshunter.io/ios/app/mora/id6756869574)

All apps by Akatsukido Co., Ltd.: https://appshunter.io/developer/1801122880

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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 2026-08-10.*