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
Egg Diet Tracker - Egg fast
Follow the popular 15-day egg diet protocol with this simple, beautiful tracker
$4.99 · In-app purchases
PRICE
$4.99
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
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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.
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 Egg Diet Tracker - Egg fast: 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
Incorporate a broader range of meal options and recipes.
Assumption to check: Limited meal variety for users
Validate with people who use this workflow before building.
Hypothesis 2
Add social features for users to share experiences and tips.
Assumption to check: No community features for support
Validate with people who use this workflow before building.
Hypothesis 3
Implement more comprehensive tracking features and visual reports.
Assumption to check: Difficulty in tracking long-term progress
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
Follow the popular 15-day egg diet protocol with this simple, beautiful tracker. Log your meals, track your weight, and stay on course through all three phases. THE 15-DAY EGG DIET PROTOCOL - Phase 1 (Days 1-5): Egg Fast - eat 6-9 eggs per day with butter, mayo, and cheese - Phase 2 (Days 6-10): Strict LCHF - low carb, high fat meals with meat, fish, and eggs - Phase 3 (Days 11-15): Egg Fast - back to eggs for the final push FEATURES - Tap to log each meal as you eat it - Track your daily weight and see your progress on a chart - Built-in rules and guidelines for each phase - Progress bar showing total meals completed - Set your start date and see calendar dates for each day - Works 100% offline - your data stays on your device - No account needed, no sign-up, no server DESIGNED FOR SIMPLICITY Just open the app, set your start date, and start tapping meals as you complete them. No complicated setup, no calorie counting, no macros to calculate. The egg diet is simple, and this app keeps it that way. YOUR DATA IS PRIVATE All data is stored locally on your iPhone. Nothing is sent to any server. No account required. Your diet journey is yours alone.
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
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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.
