Health & Fitness 100K+ downloads Google Play

Calorie & Diet

Calorie counter, BMI and BMR calculators, a diet plan built for your goal, recipes and workouts.

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About Calorie & Diet

Calorie & Diet turns your body measurements into a daily calorie target you can actually act on. Enter your height, weight, age, activity level and goal, and it calculates your BMI, BMR, ideal weight range and the calories you need each day — then gives you a diet plan and a tracker to hit it.

With more than 100,000 downloads it is the most widely used app I have published, and the one I point to when someone asks what I build.

Screenshots

Key features

Daily calorie target built from your numbersYour BMR and activity level become one number: how much you should eat today for weight loss, muscle gain or maintenance.
Health calculatorsBMI, BMR, ideal and healthy weight range, and daily calorie needs adjusted for how active you actually are.
Personal Health ScoreOne number out of 100 from your BMI, activity level and goal, so you can see where you stand at a glance.
Calorie and macro trackerLog meals and watch protein, carb and fat totals against your target. A daily ring shows calories remaining.
Personalised diet planA day-by-day meal plan built around your calorie and macro targets, adjusting for weight loss, muscle gain or maintenance.
Healthy recipesGoal-based recipes with step-by-step instructions and a full nutrition breakdown for each one.
Guided workout programsBeginner through advanced programs with step-by-step sessions and a complete workout history.
Progress tracking and goal forecastLog your weight over time, see the trend, and get a projected date for reaching your target.
Daily remindersA gentle nudge to log your day, because the tracking only works if you actually do it.

Who it's for

Anyone starting a weight-loss or muscle-gain plan
People who want a diet plan without hiring a nutritionist
Users tracking BMI, BMR and calorie needs
Home and gym trainees who want workouts and nutrition in one app

Built with

Flutter
Dart
Firebase
Local database

Want an app built on this stack? See how I work or get in touch.

Frequently asked questions

How does the app work out my calorie target?

It calculates your BMR — the energy your body uses at rest — from your height, weight, age and sex, then adjusts it for your activity level to get your daily maintenance calories. Your goal then shifts that number up or down.

What is the Health Score?

A single number out of 100 combining your BMI, activity level and goal, so you can see at a glance whether your current numbers line up with what you are trying to achieve.

Is Calorie & Diet free?

The app is free to download and the core calculators and tracking are free to use. A Premium upgrade unlocks the full Health Score breakdown, the complete diet plan, the full recipe library, all workout programs, unlimited progress history and the goal forecast.

Do I need an internet connection?

The calculators and daily tracking work without a connection. Some recipe and sync features work better online.

Is this suitable for medical conditions or pregnancy?

No. The calculators use standard population formulas and are meant for general fitness use. If you are pregnant, managing a medical condition, or working with a very low calorie target, speak to a doctor or dietitian rather than relying on an app.