Lengsup

In-app purchases
Content rating
Everyone
10+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

LengsUp is a growth care app that records and manages your child's daily health in one place.

Based on KCDC standard data, it provides percentile charts comparing your child to their peers,

and automatically calculates daily nutrient standards tailored to age, gender, and weight. ▣ Key Features

· Growth Log

- Automatically displays peer percentile (based on KCDC standards) and growth curves when height and weight are entered

- Provides graphs to view changes over time at a glance

- Instantly compare desired metrics by toggling height and weight

· Bone Age-Based Predicted Height (Unlock via In-App Purchase)

- Calculates estimated adult height based on entered bone age and current physique

- Permanent access with a one-time payment

· Diet & Nutrition Management

- Register meal plans by food item after searching

- Automatically calculates daily intake for protein, calcium, magnesium, phosphorus, and vitamin D

- Personalized goals based on KDRI recommendations reflecting age, gender, and weight

- Supplement intake log

· Sleep Monitoring

- Record sleep start and end times

- Check sleep duration statistics and daily patterns

- Stable measurement even in the background

· Social Feed

- Share daily growth routines with other parents

- Add friends, post, comment, and like

· Convenience Features for Parents

- Easy login via Kakao, Naver, Google, and Apple

- Child Profile Management, Notifications, Guardian Contact Registration

▣ Who is this good for?

- Parents who want to systematically record the growth and health of children aged 1 to 18

- Guardians who want to check if their child is growing well compared to the average for their age

- Families who want to check if their daily nutritional intake meets recommended levels

▣ Privacy Information

- All data you enter is transmitted securely via encrypted communication (HTTPS).

- You can immediately delete all data at any time via [Settings > Delete Account] in the app.

Start by recording your child's height today.

LengsUp turns small daily changes into meaningful data.
Monitor your child's height, weight, diet, and sleep at a glance. A growth care app that even predicts height based on bone age.
Updated on
Jul 24, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Photos and videos and Audio
  • This app may collect these data types
    Personal info, Health and fitness, and Device or other IDs
  • Data is encrypted in transit
  • You can request that data be deleted
  • Committed to follow the Play Families Policy
Content rating
Everyone
In-App Purchases
Learn more

App support

About the developer
렝스업(주)
taehodoc@daum.net
대한민국 26371 강원도 원주시 문막읍 원문로 1700 107동 901호 (건등리,서원주코아루아너스)
+82 10-5142-4250