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
Shiny: Card Value Scanner
Join 1M+ Pokemon card & TCG collectors who trust Shiny to identify their trading cards and manage their collections
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
3,491 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 Shiny: Card Value Scanner: map the core Reference 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 machine learning for better card recognition.
Assumption to check: Limited scanning accuracy with low-quality images
Validate with people who use this workflow before building.
Hypothesis 2
Optimize backend queries for faster data retrieval.
Assumption to check: Slow loading times for card value data
Validate with people who use this workflow before building.
Hypothesis 3
Design a more user-friendly subscription prompt approach.
Assumption to check: In-app purchase prompts can be intrusive
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to personalize their profiles with themes or custom avatars.
Assumption to check: Limited user profile customization 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
Join 1M+ Pokemon card & TCG collectors who trust Shiny to identify their trading cards and manage their collections. Scan your cards to get instant, real-time market values based on completed sales. Turn your card collection into a digital portfolio with Shiny! The fastest and most accurate card scanner app for card collectors globally. SCAN WITH PRECISION Leverage the industry's fastest trading card recognition technology with unlimited scanning. Combined with powerful advanced filtering tools, you can easily identify your cards in seconds and instantly pull up real-time market values. MANAGE YOUR PORTFOLIO Professionally manage unlimited items, sets, folders, and wish lists completely for free. Turn your physical collection into a digital powerhouse and access your TCG collection seamlessly across all your devices, so your digital portfolio is always with you. REAL-TIME MARKET INSIGHTS Access millions of trading card, sealed product, and card grading prices alongside historical data for free. With localized pricing data at your fingertips, you can set custom price alerts for singles, sealed products, or slabs and never miss a market shift. PREP FOR GRADING Perform advanced card grading checks with our built-in Centering Tool before sending your cards off. Take the guesswork out of the process and ensure your cards are in optimal condition for submission to major grading companies. JOIN A GLOBAL COMMUNITY Join a worldwide community of 1M+ collectors! Download Shiny today and experience the industry standard in precision scanning. Connect with the market's most trusted data and celebrate the hobby with collectors around the globe. More about Shiny: Terms of Service: https://www.getshiny.io/terms-of-service Privacy Policy: https://www.getshiny.io/privacy-policy E-mail: [email protected] Developer: Shiny Cardboard, LLC Download Shiny today to turn your physical collection into a digital powerhouse! Supported Games: Pokémon, One Piece, Magic the Gathering, Yugioh, Dragon Ball, Gundam, Riftbound, Disney Lorcana, and emerging card games Pokémon Support: English, Japanese, and Chinese sets One Piece Support: English and Japanese sets Pricing Localization: Global support across multiple international currencies
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
Supabase
Zustand
expo-camera
react-navigation
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.
