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
Rising Card Magic Trick
A powerful, mind-blowing magic trick, right on your iPhone
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
133 ratings · Top 5%
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 included18 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 Rising Card Magic Trick: map the core Entertainment 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
Add more premium tricks and user-generated content
Assumption to check: Limited selection of tricks may not satisfy advanced users
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the purchase process and clarify pricing
Assumption to check: In-app purchases can be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Incorporate step-by-step guided tutorials or AR features
Assumption to check: Lack of interactive tutorials for beginners
Validate with people who use this workflow before building.
Hypothesis 4
Enable users to share their performances on social media platforms
Assumption to check: Limited social sharing 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
A powerful, mind-blowing magic trick, right on your iPhone. Easy to learn. Stunning to perform. "Amazing!" — David Pogue, The New York Times Featured by Apple. As seen in The Wall Street Journal, Wired, TechCrunch, Gizmodo, AppleInsider, iLounge, TUAW, and The New York Times. — How It Works: Ask your friend to name *any* playing card. Hand them your iPhone and let them open the Rising Card app. A photo of a deck of cards appears. As they think of their card and shake the phone, their chosen card *visibly rises* from the deck. No forcing. The tricks works *every* time, with ANY card they name. This app showcases a brilliant method pioneered by critically acclaimed magician Chris Kenner (executive producer for David Copperfield). It's simple to learn and devastatingly effective. - Perfect for beginners and pros - Simple to learn - Can be *any* card - Your friends will FREAK out If you have *any* trouble or questions, visit theory11.com/support for help. We've got your back. — Want to learn more magic? Visit theory11.com for card tricks, illusions, and mentalism taught by top magicians, and the premium playing cards featured in this app.
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
Zustand
react-navigation
expo-video
shadcn/ui
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.
