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
Courtyard: TCG, Watches, Cards
Rip open digital packs to reveal authentic collectibles, across Pokémon cards, sports cards, comics, luxury watches, and rare coins!
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.6
8,087 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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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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 included
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 Courtyard: TCG, Watches, Cards: 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
One-tap Apple Pay checkout
Assumption to check: Slow checkout process
Validate with people who use this workflow before building.
Hypothesis 2
AI-powered search with filters and suggestions
Assumption to check: Poor search results
Validate with people who use this workflow before building.
Hypothesis 3
Real-time tracking with push notifications
Assumption to check: No order tracking
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
Rip open digital packs to reveal authentic collectibles, across Pokémon cards, sports cards, comics, luxury watches, and rare coins! Each pack contains one real, graded card, comic, watch, or coin depending on which category you choose. If you don't like what you pull, sell it back instantly with our instant buyback feature. Buy or sell on the marketplace with 0% seller fees, keep them vaulted and insured for free, or redeem them to have shipped straight to your door. Come experience the thrill of ripping packs and collecting from the convenience of your phone and with none of the hassle! OPEN DIGITAL PACKS, GET PHYSICAL ITEMS • Rip packs any time to reveal Pokémon, football, baseball, and basketball cards, comics, watches, rare coins, and more. • Instant buyback available. Sell your item immediately if you do not like what you pull. • We provide transparent, real-time odds so you know exactly what your chances are of pulling items of different values in each pack. GROW YOUR COLLECTION • Own authenticated graded collectibles: cards, coins, comics, and watches, stored and insured in our vault. • View, manage, or sell your collectibles with just a few taps. Your collection is always within reach. SELL OR REDEEM ANYTIME • List for sale on Courtyard's marketplace with 0% seller fees, trusted by over 1M collectors. • Redeem cards, coins, comics, or watches and have them shipped to you in a week with no hassle. VAULTED AND INSURED • Collect with peace of mind, insured vaulting with no extra fees. • Free up your closet, we'll handle the storage so you don't have to. • No sales tax on vaulted transactions. DISCOVER NEW COLLECTIBLES • Find exactly what you're looking for on the marketplace with filters for price range, grade, set, and more. • Explore new types of collectibles, from $25 Starter Packs to $1,000 Diamond Packs across cards, coins, comics, and watches. • Discover grails you didn't even know you wanted from the Vending Machine. PROFILE • Track your rips, sales, and trades. • Customize your profile and add a username. • Claim daily points and climb the leaderboard. . . . Please note: All cards and coins are physically stored, graded, and insured. You can ship to your home anytime or resell on the marketplace. All watches come either new (unworn) or mint condition with box and papers. Coins are graded and authenticated by leading third-party grading services.
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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
Stripe
Algolia
Supabase
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
