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
Rare Candy: Scan Pokémon Cards
Rare Candy - Scan, Track, and Rip Packs
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
4,917 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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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/
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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 Rare Candy: Scan Pokémon Cards: 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 advanced image recognition algorithms for better accuracy.
Assumption to check: Limited card scanning accuracy.
Validate with people who use this workflow before building.
Hypothesis 2
Adopt a minimalist design to improve usability.
Assumption to check: User interface can be cluttered.
Validate with people who use this workflow before building.
Hypothesis 3
Optimize backend queries and caching for faster access.
Assumption to check: Slow loading times for card data.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate real-time market data for card valuations.
Assumption to check: Limited card valuation tools.
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
Rare Candy - Scan, Track, and Rip Packs Rare Candy is built for TCG collectors who want one place to scan cards, track value, open Instapacks, and shop verified listings. Scan Pokémon, Magic: The Gathering, One Piece, Disney Lorcana, Gundam, and graded slabs. Build binders, follow market movement, spot grading upside, and open curated Instapacks that reveal real cards you can keep, ship, or exchange for candy. SCAN CARDS Identify raw and graded cards with your camera. Rare Candy supports English and Japanese Pokémon sets, plus Magic: The Gathering, One Piece, Lorcana, Gundam, Riftbound, and slabs from PSA, CGC, BGS, SGC, and TAG. TRACK YOUR COLLECTION Organize everything you own in digital binders. See master set progress, manage wishlists, and keep your collection updated as you scan. OPEN INSTAPACKS Open curated digital packs and pull real TCG cards instantly. Keep cards in your Vault, ship them, or exchange them for credit. SEE MARKET VALUE Follow collection value and card-level price movement over time. Use current market data to compare cards, plan trades, and decide what to buy or sell. KNOW WHAT TO GRADE Grade Worthy compares raw and graded values to help you find cards with strong grading upside. Use it to prioritize grading candidates before you submit. SHOP VERIFIED LISTINGS Browse verified sellers, vetted products, weekly drops, auctions, pre-orders, Instapacks, singles, and sealed products. JOIN THE COMMUNITY Share binders, show off pulls, follow creators, and see what other collectors are building. More about Rare Candy: Terms and Conditions: https://rarecandy.com/terms Privacy Policy: https://rarecandy.com/privacy E-mail: [email protected] Instagram: https://www.instagram.com/rarecandy/ Sign up for a free account to access collection tools, marketplace features, community, and Instapacks. Supported games: Pokemon, Magic: The Gathering, One Piece TCG, Disney Lorcana, Gundam Card Game, Riftbound Supported grading companies: PSA, BGS, CGC, SGC, TAG
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
react-navigation
expo-camera
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.
