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
PBC AI Nutritionist
One-Time Payment, Limited Time Only!
$0.99 · In-app purchases
PRICE
$0.99
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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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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/
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 PBC AI Nutritionist: 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
Focus on modern, attractive UI elements.
Assumption to check: Lack of engaging user interface design
Validate with people who use this workflow before building.
Hypothesis 2
Offer extensive food search and logging features.
Assumption to check: Limited food database and tracking options
Validate with people who use this workflow before building.
Hypothesis 3
Enhance AI algorithms for better user insights.
Assumption to check: Insufficient AI recommendations and personalization
Validate with people who use this workflow before building.
Hypothesis 4
Streamline navigation with clear pathways and guides.
Assumption to check: Confusing navigation structure
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
One-Time Payment, Limited Time Only! PBC AI Nutritionist Smart nutrition, lifestyle, and daily support for people living with Primary Biliary Cholangitis (PBC) Living with PBC can be overwhelming. Fatigue, itching, digestive sensitivity, lab results, and daily food decisions can feel confusing and exhausting. PBC AI Nutritionist is designed to support you—not replace your doctor—by helping you make informed, liver-friendly lifestyle choices every day. This app provides AI-powered, educational guidance tailored specifically for people with Primary Biliary Cholangitis, focusing on nutrition, daily routines, sleep, movement, and symptom-aware support. What PBC AI Nutritionist Helps With Personalized Nutrition Support Liver-friendly food suggestions Meal ideas based on symptoms like fatigue, itching, or bloating Guidance on gentle cooking methods and portion balance Support for fat-sensitive digestion common in PBC Lab-Aware Educational Insights Easy-to-understand explanations of common PBC labs (ALP, bilirubin, AST/ALT, cholesterol, vitamin D, and more) Food and lifestyle tips commonly associated with liver support Clear, non-alarming explanations—no diagnosis or treatment advice Sleep & Energy Support Guidance for managing PBC-related fatigue Consistent sleep schedule tips Daily pacing and energy-management strategies Gentle Activity Guidance Low-impact movement suggestions (walking, stretching, yoga) Bone-health–aware lifestyle tips Emphasis on listening to your body and avoiding overexertion Symptom-Aware Daily Support Adjusts guidance based on reported symptoms Encourages small, practical changes that fit real life Calm, empathetic, non-judgmental tone This app provides educational information only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult your hepatologist or healthcare provider before making dietary or lifestyle changes
Written user reviews are not shown here. Check current App Store reviews >
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
@react-navigation/native
axios
react-native-chart-kit
expo-secure-store
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.
