InterFasting vs Weight Calendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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Want to succeed with intermittent fasting and achieve your weight loss goals? Meet InterFasting—the ultimate AI-powered intermittent fasting tracker and smart diet companion trusted by millions worldwide! Instead of just starving yourself, InterFasting helps you build sustainable, healthy habits through scientific, data-driven, and systematic health management. Start your smart wellness journey with the highest-rated fasting app on the App Store. ■ WHY CHOOSE INTERFASTING? [NEW] INTRODUCING INTERFASTING AI • AI Schedule Recommendations: No more guessing! Our advanced AI automatically analyzes your lifestyle to recommend the perfect, customized intermittent fasting plan. • AI Calorie Counter & Food Scanner: Simply snap a photo of your meal. The AI instantly calculates calories and macros to effortlessly log and manage your diet. THE EASIEST INTERMITTENT FASTING TIMER • Supports all popular fasting methods including 16:8, 5:2, OMAD (One Meal a Day), and custom circadian rhythm schedules. • Receive smart, timely alarms for your fasting start and end times. (※ Please enable notification settings!) 100% CUSTOMIZABLE & AD-FREE FASTING • Adjust your fasting times and schedules completely free. • Track, edit, and manage your personalized fasting plan with a clean, ad-free interface. ALL-IN-ONE HEALTH & WEIGHT TRACKER • Monitor everything in one place: fasting hours, weight loss progress, meal logs, workout activity, and daily water intake. SCIENTIFIC FASTING ANALYSIS & REPORTS • Access detailed body statistics, fasting history, and meal calorie data. • Stay motivated with comprehensive weekly and monthly progress reports. CONVENIENT HOME SCREEN WIDGETS • Check your current fasting stage, countdown timer, and control your status instantly right from your home screen. HOUR-BY-HOUR BODY STAGES INFO • Learn what happens inside your body during a fast (Ketosis, Autophagy, etc.). Understanding these metabolic changes is the key to long-term success. VISUAL PROGRESS & PHOTO DIARY • Log your meals and take "Eye Body" progress photos. Seeing your physical transformation over time is the ultimate motivation to keep going! ■ THE SCIENCE-BACKED BENEFITS OF FASTING • Effective Weight Loss & Fat Burn: Target stubborn body fat and optimize metabolism. • Boosted Autophagy & Cellular Repair: Enhance cellular health and longevity. • Improved Blood Sugar Control: Increase insulin sensitivity and manage glucose levels naturally. • Reduce Inflammation: Lower oxidative stress and support your body’s natural detox. • Enhanced Mental Clarity: Experience razor-sharp brain function and steady energy levels. ■ PERFECT FOR ANYONE WHO WANTS TO: • Try intermittent fasting for the first time and need a beginner-friendly guide. • Stay accountable with a systematic, automated fasting tracker. • Achieve healthy weight loss, keto diet goals, or better metabolic health. • Stop struggling with complex calorie counting and manual meal logging. The secret to a successful lifestyle change is consistency. InterFasting is here to help you build healthy habits that last. Download InterFasting now and unlock your healthy transformation! *** APPLE HEALTH INTEGRATION *** InterFasting seamlessly integrates with the Apple Health app to automatically sync and track your weight, steps, and workout data. --- 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_en
Weight Calendar
Easily log your weight multiple times a day and visualize your progress on a calendar. Track body photos and diary entries alongside your weight to monitor changes. Set weight goals and view detailed graphs to support your fitness journey.
- Record morning and evening weight
- Log body photos and diary entries
- View weight on a calendar
- Set target weight and date
- Weight change graphs
- Multi-language support
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The weight calendar app is an app that allows you to easily record your weight in the morning and evening, and check the recorded weight at a glance on the calendar. Record it consistently for dieting or maintaining your weight! Recommended for these people: ■ Those who want to record their weight consistently for dieting success or maintaining their weight ■ Those who want to record their weight not only in the morning but also in the evening ■ Those who want to see the recorded weight at a glance on the calendar ■ Those who want to see the changes in their body photos at a glance on the calendar as well as their weight ■ Those who want to see the changes in their weight at a glance on the graph as well as the calendar If any of the above apply to you, Try the weight calendar app! The weight calendar app will help you keep track of your weight :D Summary of app features: ■ Record morning and evening weight, eye body photos, condition, and diary by date ■ Check your weight and eye body photos on the calendar ■ Set your target weight and date ■ Provide weight change graphs for one week, two weeks, one month, three months, six months, and one year ■ Changeable between Korean, English, and Japanese ■ Change weight units to kg or lb For inquiries and improvements, please send an email to kthdd1234@gmail.com. We will do our best to help users of the weight calendar app succeed in their diet and maintain their weight! Thank you. Image source: https://webgradients.com/ https://home.streamlinehq.com/ https://www.freepik.com/
Screenshots
Verdict
The clearest difference is update cadence: InterFasting at every 2 days against Weight Calendar's every 2 weeks. InterFasting also leads on ratings volume (267 vs 19). On price, rating, review sentiment and ads 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
Both are free to download. InterFasting sells 3 in-app purchases, starting at $3.99 per month and Weight Calendar sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for InterFasting against 4.9 for Weight Calendar. That said, the two scores are not equally well evidenced: InterFasting has 267 ratings behind it against 19, so its average is the more settled of the two. Written reviews are what separate them: 88% of InterFasting's written reviews are positive against 90% of Weight Calendar's.
InterFasting ships an update every 2 days, Weight Calendar every 2 weeks. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.
| Parameter | InterFasting | Weight Calendar |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (267 ratings) | 4.9 (19 ratings) — better |
| Positive reviews | 88.4% of reviews | 90.3% of reviews — better |
| Number of ratings | 267 — better | 19 |
| Update frequency | Every 2 days — better | Every 2 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 85 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | Kim Yunhoo | kim donghyun |
Customer experience
InterFasting
Weight Calendar
Bugs and requests
InterFasting
Not enough reviews yet to summarise bugs or requests.
Weight Calendar
Reported bugs
6 issues- Backup not working properly
- Goal weight text cut off on graph
- Weight progress not displaying correctly
- Units not converting correctly
- Cannot input decimal weight values
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- Photo quality degrades when viewed
Requested features
22 requests- Add functionality to set multiple goals (e.g., weekly goals)
- Add option to choose weight comparison basis (morning vs. evening)
- Add more sticker designs
- Add more food sticker categories
- Add ability to write text in different colors in memo
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- Add option to view photos only without entering edit mode
- Add support for Apple Health automatic syncing
- Add BMI index display
- Add ability to edit entry time
- Add option to start the week on Monday
- Add dark mode
- Add alarm function for weight measurement reminders
- Add option to choose average weight for a period (weekly/monthly)
- Add ability to record body fat percentage and muscle mass
- Add option to compare previous evening's weight with current morning's weight
- Add ability to set future dates on calendar for weight goals
- Add ability to input decimal weight values
- Add functionality to set multiple goals with commas
- Add option to view photos in full screen
- Add ability to input 3rd decimal place for weight
- Add option to set weekly average calculation
- Add option to set password reset via Face ID
In-app purchases
InterFasting
- Premium 1 month$3.991 Month
- Gandan Premium Annual$12.991 Year
- Premium User$12.99
Weight Calendar
- Food A Stickers$0.49
- Exercise Stickers – Lifetime Access$0.99
- Food B Stickers$0.99
Show 1 moreShow fewer
- Weight Calendar - Remove Ads$3.99
Questions
Is InterFasting free?
Is Weight Calendar free?
Which has better reviews, InterFasting or Weight Calendar?
Do InterFasting or Weight Calendar have ads?
Which is updated more often, InterFasting or Weight Calendar?
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