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
IcyBox
Introducing IcyBox for iOS: an online marketplace that transforms how luxury items are collected.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.3
6,214 ratings · Top 30%
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 included17 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 IcyBox: map the core Shopping 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 advanced filtering and sorting for better user experience.
Assumption to check: Limited product filtering options
Validate with people who use this workflow before building.
Hypothesis 2
Optimize image loading with lazy loading and caching.
Assumption to check: Slow loading times for product images
Validate with people who use this workflow before building.
Hypothesis 3
Encourage more user feedback and display verified purchases.
Assumption to check: Inconsistent user reviews and ratings
Validate with people who use this workflow before building.
Hypothesis 4
Add more payment methods like Google Pay and PayPal.
Assumption to check: Limited payment options
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
Introducing IcyBox for iOS: an online marketplace that transforms how luxury items are collected. Interact with any of our digital boxes to experience the enjoyment of collecting from brands like Rolex, Patek Philippe, Audemars Piguet, and Hermes! After revealing an item, you can sell it back to us or keep it by shipping it right to your door! EASY TO USE Open any digital box available on the marketplace to reveal unique luxury items. You can ship any item you pull straight to your door. However, in the event that you need time to think, you can keep the item in your collection for a limited amount of time! We provide transparent odds so you will be able to view your chances of pulling items of different values from each box. GROW YOUR COLLECTION Whether you are looking for multiple items for any occasion or if you are just looking for one for a special occasion, you can find it on our marketplace. Own luxury goods. View your collection with just a few clicks! PROFILE Track your collection, refer friends and experience a whole new side of collecting. Please note that we do not guarantee that the luxury item will be new (unworn) or a better condition.
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.
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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.
