# 7700 Kcal Challenge — Burn bodyfat with buddies!

> Burn bodyfat with buddies! (iPhone/iPad app by kyongmook lim.)

- Source: https://appshunter.io/ios/app/7700-kcal-challenge/id6757456975 (this page in markdown: same URL + `.md`)
- Developer: [kyongmook lim](https://appshunter.io/developer/1866778850)
- Category: Health & Fitness, Entertainment
- Price: Free
- Age rating: 12+
- Requires: iOS 15.1 · 42 MB
- Languages: American English
- Released: 2026-01-15
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/7700-kcal-challenge/id6757456975/reviews.md

## What is 7700 Kcal Challenge?

7700 Kcal Challenge - Science-Based Fat Loss Goals!

  Why 7700 kcal?

  To lose 1kg of body fat, you need an energy deficit of approximately 7,700 kcal¹². This scientific principle was    
  established by Dr. Max Wishnofsky in 1958 and is widely cited in medical literature worldwide³. Our app uses this    
  evidence-based approach to provide clear, achievable goals.

  Key Features

  【Apple Watch Integration】
  • Real-time calorie tracking via HealthKit
  • Accurate tracking of all activities - workouts and daily movement

  【AI-Powered Workout Recommendations】
  • Personalized exercise programs based on your body type, experience, and goals
  • Fresh daily routines to keep you motivated

  【Challenge Mode】
  • Choose 1-week, 2-week, or 1-month periods
  • Systematic progress tracking toward your 7700kcal goal

  【Battles & Raids】
  • Compete with friends in calorie battles for extra motivation
  • Team raids to achieve goals together

  【Missions & Achievements】
  • Daily/weekly missions to build consistent exercise habits
  • Various achievements and rewards to boost your sense of accomplishment

  【Points System】
  • Earn points as you exercise
  • Get rewards for attendance, missions, and achievements

  Perfect For

  • Anyone with weight loss goals
  • Those wanting to build exercise habits
  • People who struggle with motivation when exercising alone
  • Anyone seeking a science-based approach to fitness

  Start today. Experience healthy transformation with the 7700kcal Challenge!

  References:
  ¹ Wishnofsky M. Caloric equivalents of gained or lost weight. Am J Clin Nutr. 1958;6(5):542-546                      
  ² Hall KD. What is the required energy deficit per unit weight loss? Int J Obes. 2008;32(3):573-576                  
  ³ Thomas DM, et al. Can a weight loss of one pound a week be achieved with a 3500-kcal deficit? Int J Obes.          
  2013;37(12):1611-1613


## Version history (last 1 release)

### 1.0 — 2026-01-15

No release notes.

## Related topics

[7700 kcal challenge](https://appshunter.io/ios/topics/7700-kcal-challenge)

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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 2026-05-19.*