Comparison

핏데이 vs InterFasting

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

핏데이

This app offers personalized home fitness with full voice coaching, acting as your virtual personal trainer. It provides various workout plans tailored to your fitness level and goals, including strength training and stretching routines.

Highlights
  • Full voice training with virtual PT
  • Customizable workout intensity
  • 7-minute workouts plus extended plans
  • Variety of tailored workout programs
  • 19 stretching routines
  • Activity tracking integration
Features
Read full description

세상에 없던 나만의 홈 피트니스 앱! 국내 최초 풀 보이스 트레이닝으로 나만의 맞춤형 트레이너가 나타났습니다. 런데이로 달리기 실력을 다져오셨다면, 이젠 핏데이로 근력 훈련을 하며 더 건강한 핏을 만들어 보세요! [핏데이만의 특징] ▶ 100% 풀 보이스 트레이닝 헬스장에 가지 않아도 항상 곁에 있는 나만의 퍼스널트레이너(PT)와 함께 26 데이 운동 코스를 모두 마치신다면 엄청난 체력을 가질 수 있습니다. ▶ 맞춤형 운동 강도 세팅 과.유.불.급! 나만의 체력에 맞게끔 강도를 조절할 수 있는 운동 플랜으로 체력 레벨업하시고 상쾌하고 가벼운 컨디션을 느껴보세요! ▶ 7분 워크아웃 + 알파! 기존 7분 워크아웃으로 운동 효과를 보신 분들을 위한! 세상에 없던 운동 플랜! 자극되지 않는 부위에 대한 운동을 추가하여 보다 완벽한 운동 플랜을 만들었습니다. ▶ 다양한 맞춤형 운동 플랜 제공 저질체력 탈출하기(26일 코스), 매일하는 7분 운동(매일 반복 코스), 이틀전환 7분운동(2일 반복 코스), 뱃살 제거 다이어트(24일 코스) 탄력있는 힙과 허벅지 만들기(3일 반복 코스) 등 다양한 맞춤형 운동 플랜을 제공합니다. ▶ 스트레칭 플랜 제공 일상 생활에 활력을 줄 수 있는 총 19종의 스트레칭 플랜을 제공합니다. ▶ 선택 접근 허용 권한 1. Apple Music, 음악 및 비디오 관련 할동에 대한 미디어 보관함 사용권한 : 운동을 할 때 사용자의 Apple Music 및 미디어 보관함에 보유하고 있는 음악들을 듣기위해 필요한 권한 입니다. 2. 알림에 대한 권한 : 운동 진행 중에 친구에게 응원 푸시를 보내기 위한 권한입니다. 3. 동작 및 피트니스 활동에 대한 권한 : 오늘의 활동량(걸음 수) 체크를 위해 필요한 권한 입니다. 4. 광고 추적 권한 : 사용자의 활동을 추적하여 맞춤형 광고 제공을 위한 권한입니다. 접근 권한 동의 후, 다음과 같이 접근권한을 재설정하거나 철회할 수 있습니다. 설정 > FitDay 선택 > > 접근권한 동의 또는 철회 선택 ▶ 고객센터 안내 주식회사 땀 전화 문의 : 070-4050-8537 오전 10:00~오후 5:00 (주말/공휴일 휴무) ▶ 제휴 및 광고 문의 contact@ttam.ai 070-4050-8537 ▶ 공식카페: http://cafe.naver.com/hanbitfitness ▶ 핏데이 서비스 이용약관 https://health.fitday.co.kr/fitday_standardterms.html ▶ 핏데이 개인정보 취급 방침 https://health.fitday.co.kr/runday_fitday_policy_personal.html

About

InterFasting

This app helps users succeed with intermittent fasting through scientific and systematic management. It offers AI-powered schedule and calorie recommendations, a simple timer, and comprehensive tracking of fasting hours, meals, workouts, and water intake. Users can visualize progress and receive detailed reports to build healthy habits.

Highlights
  • AI fasting schedule recommendations
  • AI food calorie calculation
  • Intermittent fasting timer
  • Customizable fasting plans
  • All-in-one health tracking
  • Fasting analysis and reports
  • Home screen widget
Features
Read full description

Ready to make intermittent fasting actually work? InterFasting is the smart fasting tracker and fasting timer that helps you stay consistent without extreme dieting. No more guessing, no complicated calorie counting — just smart tools that actually work. Why people choose InterFasting • AI Schedule Recommendations Get a personalized intermittent fasting plan based on your lifestyle — no more trial and error. • AI Calorie Counter & Food Scanner Just snap a photo of your meal. Instantly see calories and macros without manual logging. • The Easiest Fasting Timer Supports 16:8, 5:2, OMAD, and fully custom schedules. Smart alarms keep you on track. • 100% Free Customization + Ad-Free Experience Adjust your fasting windows freely and track everything in a clean, distraction-free interface. • All-in-One Health Tracker Monitor fasting hours, weight progress, meals, workouts, and water intake in one place. • Home Screen Widgets Check your fasting stage and countdown timer instantly from your home screen. • Hour-by-Hour Body Stages See what’s happening in your body during a fast (Ketosis, Autophagy, and more). • Visual Progress & Photo Diary Log meals and take progress photos to stay motivated by real results. Science-backed benefits of intermittent fasting Effective fat burning and weight loss Boosted autophagy and cellular repair Better blood sugar control Reduced inflammation Improved mental clarity and energy Perfect if you want to start intermittent fasting for the first time, stay consistent with a reliable tracker, or combine fasting with keto and healthy weight loss goals. Consistency is the key. InterFasting helps you build habits that last. Download now and start your transformation. *** Apple Health Integration *** Automatically syncs weight, steps, and workout data with the Apple Health app. ABOUT SUBSCRIPTIONS & PAYMENT • Payment will be charged to your Apple ID account at confirmation of purchase. • You can manage or cancel your subscription in your App Store Account Settings at any time. • Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Terms of Service: https://www.interfasting.app/service_en Privacy Policy: https://www.interfasting.app/privacy

Screenshots

핏데이4 screens
InterFasting4 screens

Verdict

The call

The clearest difference is rating: InterFasting at 4.8 against 핏데이's 3.3. InterFasting also leads on update cadence (every 4 days vs every 2 weeks) and ratings volume (354 vs 21). 핏데이's advantage is in-app purchases (none vs 5) and iOS requirement (12.1 vs 15.0). On price, review sentiment, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. InterFasting sells 5 in-app purchases, starting at $3.99 per month. 핏데이 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

InterFasting holds the better App Store score, 4.8 against 3.3. That said, the two scores are not equally well evidenced: InterFasting has 354 ratings behind it against 21, so its average is the more settled of the two. Written reviews complicate that: 95% of 핏데이's written reviews are positive against 89% of InterFasting's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

핏데이 ships an update every 2 weeks, InterFasting every 4 days. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

Scorecard6 real differences · 4 level
핏데이 versus InterFasting: the parameters behind the verdict, then further details
Parameter핏데이InterFasting
PriceFreeFree
Rating3.3 (21 ratings)4.8 (354 ratings) — better
Positive reviews95.0% of reviews — better88.6% of reviews
Number of ratings21354 — better
Update frequencyEvery 2 weeksEvery 4 days — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod, Apple Watch — better
Requires iOS12.1 — better15.0
Further details — not scored
Size620 MB99 MB
Age rating4+4+
DeveloperTTAMLiviet

Customer experience

핏데이

All ratings21 ratings
Positive57.1%
Neutral0.0%
Negative42.9%
Written reviews60 reviews
Positive95.0%
Neutral0.0%
Negative5.0%

InterFasting

All ratings348 ratings
Positive95.4%
Neutral1.4%
Negative3.2%
Written reviews70 reviews
Positive88.6%
Neutral2.9%
Negative8.6%

In-app purchases

None

핏데이

No in-app purchases

5 purchases

InterFasting

Subscriptions4
  • Intermittent Fasting Monthly$3.991 Month
  • Intermittent Fasting Monthly$6.991 Month
  • Intermittent Fasting Annual$12.991 Year
Show 1 more
  • Intermittent Fasting Annual$34.991 Year
One-time1
  • Premium User$12.99

Questions

Is 핏데이 free?
핏데이 is free to download, with no in-app purchases.
Is InterFasting free?
InterFasting is free to download, with in-app purchases available.
Which has better reviews, 핏데이 or InterFasting?
InterFasting is rated higher. 핏데이 averages 3.3 out of 5 from 21 ratings, while InterFasting averages 4.8 from 354 ratings.
Do 핏데이 or InterFasting have ads?
Both 핏데이 and InterFasting show ads.
Which is updated more often, 핏데이 or InterFasting?
핏데이 ships an update every 2 weeks, and InterFasting every 4 days. Most recently, 핏데이 was updated on October 23, 2026 and InterFasting on October 26, 2026.

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