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    Health & Fitness · iPhone & iPad

    Metabolica - Calorie Tracker

    Scientific Metabolism Analysis

    Estimate your daily calories and track food, workouts and progress on iPhone.

    A TDEE calculator app estimates how many calories your body uses in a day. Metabolica calculates your BMR and TDEE with three published formulas, so you can set a daily calorie target and log food against it. These numbers are estimates, not a medical assessment.

    Download on theApp StoreAndroidComing soon

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    What Metabolica does

    Many people want to change their weight, but they do not know how many calories their body needs. Online formulas give different answers, and a calorie target from a random chart may not fit your age, height or activity. A calculator that shows its method makes the estimate easier to understand and to check.

    Metabolica starts from two numbers. BMR is the energy your body uses at rest. TDEE is your estimated total daily use, which adds activity to BMR. The app asks for age, height, weight and activity level, then shows both numbers, the body mass index and a daily calorie target.

    The app offers three formulas: Mifflin-St Jeor, Harris-Benedict and Katch-McArdle. You can choose the one that fits your body best and switch at any time. Eight nutrition profiles then apply their own macro split to your daily calorie target, from balanced eating to ketogenic and high-protein plans.

    The sections below explain the core features, the Pro analysis modules, and how the numbers should be read. Metabolica gives general estimates for information only. It does not diagnose a condition.

    Features

    01

    Core calculations

    • BMR, TDEE and BMI from your age, height, weight and activity level.
    • A choice of Mifflin-St Jeor, Harris-Benedict and Katch-McArdle formulas.
    • Eight nutrition profiles, from balanced to ketogenic, vegan and intermittent fasting.
    • A personal setup with your daily calories, macros, water target and a goal date.
    02

    Food and exercise

    • A food database with more than 100 everyday foods.
    • Track protein, carbs and fat against your daily targets.
    • Workout plans with more than 50 movements, with form guidance and calorie estimates.
    03

    Progress tracking

    • Weekly calorie charts and a long-term weight trend.
    • Water intake tracking in the same place as your other metrics.
    • Progress charts and photos, in Metabolica PRO.
    04

    Metabolica PRO modules

    • Metabolic Adaptation Radar, which flags diet plateau risk.
    • EPOC Tracker, which estimates calorie burn after exercise.
    • NEAT Analyzer, which estimates calories from everyday movement.
    • Digestive Efficiency, which uses Atwater factors for energy in food.
    • Four more modules cover circadian timing, nutrient interactions, minerals and supplements.

    Who it is for

    • Good for people who want a starting calorie estimate before they change their diet.
    • Good for people who like to see the formula behind a number.
    • Good for people who log meals and want macros on one screen.
    • Good for people who plan workouts around a daily calorie target.
    • Good for anyone who wants to compare formulas for their own body.

    Privacy

    According to its privacy policy, Metabolica keeps your body metrics, food log and goals on your device. Subscriptions are handled by Apple, and the app does not hold your payment details.

    Read the Metabolica privacy policy

    Price

    Metabolica is free to download. Metabolica PRO is a weekly, monthly, 3-month or yearly subscription, or a one-time lifetime unlock. Eligible new subscribers can get a free trial on selected plans.

    Terms of use

    Metabolica questions, answered

    What is the difference between BMR and TDEE?

    BMR is the energy your body uses at rest. TDEE adds the energy you use for activity and daily movement. Metabolica estimates both from your body measurements and activity level, so you can see the gap between them.

    Which formula does Metabolica use?

    Metabolica offers Mifflin-St Jeor, Harris-Benedict and Katch-McArdle. You can choose the one that fits your body best and switch at any time. Katch-McArdle works from lean body mass, so it needs a reliable estimate of that value.

    Are the calorie numbers exact?

    No. BMR and TDEE are estimates from equations. Your real energy use depends on sleep, muscle mass, health and daily habits. Track your weight over several weeks and adjust your plan. For a large change in diet, ask a doctor or dietitian first.

    Can I use Metabolica without a subscription?

    Yes. The app is free to download, and the core calculator and food log are available without a subscription. Metabolica PRO adds the eight advanced modules, unlimited food logging, the workout plan and progress photos.

    Is Metabolica a medical app?

    No. Metabolica gives general nutrition information and estimates for information only. It does not diagnose conditions. Talk to a qualified healthcare provider before major changes to your diet, supplements or exercise.

    Get Metabolica free.

    Free on the App Store for iPhone and iPad (iOS 15.0 or later). Android is coming soon.

    Download on theApp StoreAndroidComing soon