App Overview

Protein Counter and Tracker icon

Protein Counter and Tracker

First Line Medical Communications Ltd · Health & Fitness

Avoid the effects of not eating enough protein such as muscle wasting & weakness, osteoporosis, impaired growth & development, poor wound healing, susceptibility to infections & illnesses, depression & anxiety, britt...

$4.99 · In-app purchases

PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.5
2 ratings · Top 15%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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What's included16 files

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

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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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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> SELECT BUILD PLATFORM:

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

// RORK SYSTEM PROMPT
Rork plan preview for Protein Counter and Tracker: 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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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 a robust food database with barcode scanning and AI suggestions.

Assumption to check: Limited food database and search functionality

Validate with people who use this workflow before building.

Hypothesis 2

Introduce a voice logging feature and meal templates for quicker entries.

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

Validate with people who use this workflow before building.

Hypothesis 3

Enhance progress tracking with more detailed graphs and weekly summaries.

Assumption to check: Inadequate progress visualization

Validate with people who use this workflow before building.

Hypothesis 4

Offer more value in the free tier and a trial period to increase user adoption.

Assumption to check: Subscription model may deter users

Validate with people who use this workflow before building.

App evidence

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

App Store description

Avoid the effects of not eating enough protein such as muscle wasting & weakness, osteoporosis, impaired growth & development, poor wound healing, susceptibility to infections & illnesses, depression & anxiety, brittle hair, dry skin, weak nails, feelings of hunger & a predisposition to being overweight or obese. The new Dietary Guidelines for Americans 2025–2030 recommend a daily protein serving of 1.2–1.6g per kg body weight. Use this personal calculator and protein diary app to achieve a healthy protein intake, especially if you're at risk of protein deficiency because you're on a plant-based, dairy-free or weight-loss diet or you're over 40 to prevent age-related muscle wasting (sarcopenia). Supplements & high-protein processed foods are not the answer because they do not provide the thousands of polyphenols & other natural chemicals found in whole food needed for optimal health & to prevent disease. Set your daily target protein intake based on guidance provided in the app & your preferences for weights of food (g or oz). Record food & beverage consumption using the barcode scanner, dictation, search or by favoriting foods & using the serving sizes provided (which can be changed at any time). Tap the notepad to add notes. Monitor daily & long-term progress, export data to share with healthcare providers, synchronize data with other First Line Medical Communications Ltd nutrient counter apps, & share data with Apple's HealthKit. Add your own foods & recipes & change serving sizes to personalise the app's 400-item database for you. All food & beverage popups indicate whether the item is a plant, good prebiotic, probiotic or ultra-processed (UPF) to inform a healthy diet & whether they are high or low FODMAP per serving where data are available to support people with irritable bowel syndrome (IBS). Useful lists showing protein content of foods per 1oz or 100g and serving, which can be toggled from high to low & low to high. Also useful UPF, unprocessed plant, prebiotic, probiotic, high & low FODMAP food lists.

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Screenshots

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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
Axios
React Navigation
Victory Native
Zustand
BUILD KIT DIFFICULTY
Starter

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.