Comparison

Intermittent vs Yacc Calorie Counter

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

Head to head
About

Intermittent

This app tracks your fasting progress, mapping your hours to distinct biological phases like lipolysis, ketosis, and autophagy. It provides science-backed explanations for each phase and supports various fasting protocols. Track your weight, hydration, and progress privately.

Highlights
  • Phase-aware fasting timer
  • Supports multiple fasting protocols
  • Free fasting science library
  • Adaptive hydration target
  • Weight and progress tracking
  • Private sharing and reflection
  • Home screen widget and cross-device sync
Features
Read full description

The intermittent fasting timer that shows which fasting phase you have likely reached, from fat burning lipolysis to ketosis and autophagy, based on how long you have fasted. Ad free. No account required. Most fasting apps give you a countdown clock and a streak to protect. Intermittent does something different. It maps your hours fasted to the phases research describes, and explains the science behind each one with cited primary sources, not marketing copy. If you have ever wondered how to track fasting properly, or what is likely happening during a fast, this is the fasting tracker built for that question. WHY FASTING WORKS Intermittent fasting works because of what happens between meals, not just the absence of food. As your fast progresses, your body moves through distinct phases: burning through glucose reserves, shifting into fat burning lipolysis, entering ketosis, and eventually triggering autophagy, the cellular repair process linked to longevity and metabolic health. Understanding these transitions is what separates intentional fasting from guesswork. Intermittent maps every stage so your goals are grounded in biology, not motivation. KEY FEATURES PHASE AWARE FASTING TIMER A live timer that maps your fast to six phases: Fed, Early Fasting, Lipolysis, Ketosis, Autophagy, and Deep Fast. Each phase links to a free science article with primary sources cited. EVERY FASTING PROTOCOL, ONE APP Supports 12:12, 14:10, 16:8, 18:6, 20:4, OMAD (One Meal A Day), 36 hour, 48 hour, and 72 hour fasts. FREE FASTING SCIENCE LIBRARY A full library of fasting articles covering intermittent fasting, ketosis, autophagy, insulin response, and more. No subscription. No account. No paywall. SMART HYDRATION TARGET A science backed hydration goal that adapts to your weight, sex, age, and fasting duration. WEIGHT AND PROGRESS TRACKING Log your weight after each fast and track trends over time. Includes streak heatmap, phase reach history, and estimated fat vs glucose energy usage. PRIVATE CIRCLE AND END OF FAST REFLECTION Share your fast with a small private group. Applause only responses. No comparison. No gamification. HOME SCREEN WIDGET AND CROSS DEVICE SYNC Keep your fasting timer visible with a home screen widget. Your data syncs across devices privately without third party trackers. EATING WINDOW, REMINDERS AND RECAPS See your eating window after each fast, with an optional heads-up before it closes. Set your usual start time for a gentle reminder. Look back on each month and year with a recap you can share. WHO IT IS FOR Intermittent is built for adults who want to understand fasting, not be coached through it. If you follow research on metabolic health, read about longevity, or want a fasting routine grounded in biology rather than points or streaks, this app is for you. Suitable for both beginners and experienced fasters. HOW IT WORKS Choose your fasting protocol, from 12:12 to extended fasts Start your timer and see which phase you have likely reached Tap any phase to read the science and log your reflection at the end No account required to start. No subscription required to access the library.

About

Yacc Calorie Counter

Features
Read full description

Meet Yacc, a calorie counter made to feel a little less clinical and a lot more human. Yacc helps you log food quickly, track calories and macros, follow weight trends, and understand your day without turning every meal into homework. Scan a barcode, describe what you ate, or add food manually when you need full control. Built for real life: • Scan packaged foods with your camera • Describe meals in plain language and get nutrition estimates • Manually add calories, protein, carbs, fat, and serving details • Track daily calorie and macro goals • See food history, weight trends, and calorie patterns over time • Review previous days with a simple Logbook • Use gentle appetite support check-ins when your hunger cues change • Keep Today focused on what you’ve eaten right now Yacc Plus unlocks more flexibility, including extended Logbook history and more Describe entries each month. ( $2.99/m ) Whether you are trying to lose weight, maintain, build consistency, or simply understand your nutrition better, Yacc gives you a softer way to stay aware. Nutrition values are estimates and may vary by brand, serving size, preparation, and available data. Yacc is not medical advice. Always talk with a qualified healthcare professional before making major nutrition, weight, or medication-related decisions. Yacc Plus is an optional auto-renewable monthly subscription. Terms of Use: https://jsellurs.com/eula/yacc/ Privacy Policy: https://jsellurs.com/privacy/yacc/

Screenshots

Intermittent4 screens
Yacc Calorie Counter4 screens

Verdict

The call

The clearest difference is in-app purchases: Intermittent at none against Yacc Calorie Counter's 1. Intermittent also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Yacc Calorie Counter's advantage is update cadence (every 3 days vs every 2 weeks). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Yacc Calorie Counter sells 1 in-app purchase, starting at $2.99 per month. Intermittent asks for nothing beyond the download.

UpkeepUpdate frequency

Intermittent ships an update every 2 weeks, Yacc Calorie Counter every 3 days. Both last shipped on October 31, 2026.

Scorecard4 real differences · 6 level
Intermittent versus Yacc Calorie Counter: the parameters behind the verdict, then further details
ParameterIntermittentYacc Calorie Counter
PriceFreeFree
Rating5.0 (48 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings48 — better—
Update frequencyEvery 2 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size47 MB25 MB
Age rating4+4+
DeveloperRohit KumarJeremy Sellers

In-app purchases

None

Intermittent

No in-app purchases

1 purchases

Yacc Calorie Counter

Subscriptions1
  • Yacc Plus$2.991 Month

Questions

Is Intermittent free?
Intermittent is free to download, with no in-app purchases.
Is Yacc Calorie Counter free?
Yacc Calorie Counter is free to download, with in-app purchases available.
Do Intermittent or Yacc Calorie Counter have ads?
Neither Intermittent nor Yacc Calorie Counter shows ads.
Which is updated more often, Intermittent or Yacc Calorie Counter?
Intermittent ships an update every 2 weeks, and Yacc Calorie Counter every 3 days. Most recently, Intermittent was updated on October 31, 2026 and Yacc Calorie Counter on October 31, 2026.

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