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.
App Overview
MyCalAgent
MyCalAgent - AI Powered Nutrition & Wellness Companion
$6.99 · In-app purchases
PRICE
$6.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included15 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.
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for MyCalAgent: 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 comprehensive food database with barcode scanning for easier meal logging.
Assumption to check: Limited food database for logging meals
Validate with people who use this workflow before building.
Hypothesis 2
Create an engaging onboarding flow with tutorials and tips for new users.
Assumption to check: Difficult user onboarding process
Validate with people who use this workflow before building.
Hypothesis 3
Integrate more accurate calorie estimation algorithms and allow users to manually adjust entries.
Assumption to check: Inaccurate calorie tracking
Validate with people who use this workflow before building.
Hypothesis 4
Add social features for users to connect and challenge friends for better motivation.
Assumption to check: No social features for motivation
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
MyCalAgent - AI Powered Nutrition & Wellness Companion MyCalAgent helps you track calories, understand nutrition, and improve wellness using AI-powered meal recognition and personalized insights. Simply snap a photo of your meal, and the app estimates calories, macros, and nutrition trends to help you make smarter daily choices. Designed for real life - not perfection - MyCalAgent turns everyday meals into actionable insights so you can build consistent, healthy habits over time. KEY FEATURES AI Meal Scan • Take a photo of your meal • Instantly estimate calories, macros, and portion size • Works for home-cooked meals and restaurant foods Personalized Calorie & Macro Tracking • Automatically track daily intake • Monitor protein, carbs, and fats • Visual trends to stay on target Weight Tracking & Progress Insights • Log weight easily • See trends over time • Stay motivated with goal-based progress tracking Smart Wellness Insights • AI-powered daily summaries • Gentle nudges to stay consistent • Understand patterns behind your nutrition choices Privacy-First Design • Your health data stays secure • No selling of personal data • Built with user trust and transparency in mind WHY MYCALAGENT WORKS Most calorie trackers require manual logging, which is time-consuming and hard to maintain. MyCalAgent removes friction by using AI to estimate nutrition from photos, helping you stay consistent without overthinking every meal. Whether your goal is weight loss, muscle gain, or mindful eating, MyCalAgent helps you move from awareness to results with less effort. HOW IT HELPS YOU • Build sustainable eating habits • Stay aware of daily calorie intake • Track weight and wellness trends • Make smarter food decisions with AI guidance IMPORTANT DISCLAIMER MyCalAgent provides nutrition estimates and wellness insights for informational purposes only and does not replace professional medical or dietary advice. Always consult a qualified health professional for medical concerns or specialized nutrition plans. Start your journey toward smarter nutrition, healthier habits, and long-term wellness - one meal at a time.
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Screenshots
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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
Supabase
Zustand
react-native-haptic-feedback
expo-linear-gradient
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.
