App Overview

MyFitnessPal: Calorie Counter icon

MyFitnessPal: Calorie Counter

MyFitnessPal, Inc. · Health & Fitness

Eat better, train smarter, and hit your goals with MyFitnessPal, the calorie counter and nutrition tracker with a built-in AI Coach

Free · In-app purchases

OVERALL US RANK
#52
Grossing · all categories
REVENUE (Est)
$417K/mo
$237K - $597K
RATING
★ 4.7
2,388,258 ratings · Top 15%

Evidence scope: #52 is the current overall US Grossing chart position. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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A product spec, screen plans, and build steps for your coding agent.

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What's included19 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
Preview a sample Build Kit No email needed

Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for MyFitnessPal: Calorie Counter: map the core Health & Fitness workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

Screenshots

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App Store description

Eat better, train smarter, and hit your goals with MyFitnessPal, the calorie counter and nutrition tracker with a built-in AI Coach. Join the millions of users who've created over 100 billion food logs and counting! Calories, macros, food, workouts – track it all in one place with one of the most comprehensive health & fitness tracker apps available. Your new AI Coach gives you personalized guidance based on your goals and history. Plus GLP-1 journey support – log doses and set reminders. Set personalized fitness, nutrition, and healthy eating goals. Build better habits by tracking calories, macros, and water intake. Download the app & start your free Premium trial today. With MyFitnessPal, you get healthy food inspiration, an intermittent fasting tracker, science-backed nutrition, and powerful workout logging tools. MyFitnessPal is the #1 nutrition, macro & calorie counter app in the U.S. – as featured in the New York Times, Forbes, the Today Show & U.S. News & World Report. More than a calorie counter & nutrition journal – MyFitnessPal is an AI-powered health & fitness tracker with an AI Coach, built to help you track macros, monitor nutrition progress & crush your fitness goals. NEW FEATURE: AI COACH ■ Your personal AI Coach delivers nutrition insights tailored to your goals, habits, and logging history ■ Ask the AI Coach about your nutrition, macros & workouts CALORIE, NUTRITION & GLP-1 TRACKER ■ Log meals effortlessly from 20.5M+ foods, including restaurant dishes – calorie counting made simple ■ Full nutrition & macro tracker breakdown – carbs, fat & protein – with custom targets for protein, sodium, fiber & more ■ Get AI Coach tips to stay on track with your nutrition & macro goals ■ Stay hydrated with the built-in water tracker ■ Log how you feel on your GLP-1 medications to spot patterns in symptoms & side effects ■ Stick to your schedule with custom medication reminders ■ Build healthy habits that stick with simple nutrition & medication tracking FITNESS TRACKER & WORKOUT LOGGING ■ Log every workout & steps with our workout tracker to monitor fitness progress & calorie burn ■ See how your workouts and diet affect your nutrition, macros & goals ■ Get AI Coach guidance to make your workouts and healthy eating work together ■ Wear OS support – calorie counter, workout tracker, water tracker & macro tracker on your wrist. Add complications to the home screen for faster logging and the tile for tracking nutrients at a glance PERSONALIZED FITNESS, NUTRITION & HEALTHY EATING TOOLS ■ Customize your nutrition, macro & fitness goals – weight loss, gain, maintenance, or performance ■ Personalized health & nutrition dashboard with your workout & calorie stats in one place ■ Save healthy meals & recipes for quick calorie counter & macro logging ■ Meal planner to help you hit your nutrition & macro targets ■ Connect 40+ fitness trackers, smartwatches & health apps in one unified ecosystem PREMIUM ■ Faster calorie counting with barcode scan, meal scan & voice logging ■ Customized macro, calorie & nutrition goals tailored to your fitness targets ■ Ad-free logging with built-in insights & calorie and macro progress comparisons ■ Net Carbs Mode for keto and low-carb diets PREMIUM PLUS ■ All Premium features, plus full nutrition-focused meal planning ■ Personalized meal plans, integrated grocery delivery & smart calorie counter tools ■ 1500+ recipes tailored to your calorie, nutrition, macro & fitness goals MyFitnessPal is the leading health & fitness tracker app with an AI Coach to help you conquer your calorie, nutrition & healthy eating goals. View our terms & conditions and privacy policy: https://www.myfitnesspal.com/terms-of-service https://www.myfitnesspal.com/privacy-policy

Written user reviews are not shown here. Check current App Store reviews >

Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Implement barcode scanning for quick food logging.

Assumption to check: Users find it tedious to log every single meal.

Validate with people who use this workflow before building.

Hypothesis 2

Allow users to create and share custom food entries.

Assumption to check: Calorie counts can be inaccurate or inconsistent.

Validate with people who use this workflow before building.

Hypothesis 3

Simplify community navigation and highlight trending posts.

Assumption to check: Social features might feel overwhelming or underutilized.

Validate with people who use this workflow before building.

Hypothesis 4

Optimize database queries and caching for better performance.

Assumption to check: The app can be slow at times, especially with large food databases.

Validate with people who use this workflow before building.

Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
Zustand
@supabase/supabase-js
react-native-svg
expo-router
BUILD KIT DIFFICULTY
Advanced

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.