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
SneakScan
Don’t guess sneaker resale prices
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
6 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 included16 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 SneakScan: 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
Expand database and partnerships with retailers.
Assumption to check: Limited sneaker database compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement a user review system to enhance trust.
Assumption to check: No user reviews or ratings for sneakers
Validate with people who use this workflow before building.
Hypothesis 3
Add features to share finds on social media.
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Use algorithms to suggest sneakers based on user preferences.
Assumption to check: Lack of personalized recommendations
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
Don’t guess sneaker resale prices. Scan and know instantly. Sneaker Scanner helps you quickly determine whether a sneaker is worth buying to resell. Simply scan a shoe box label or barcode and instantly see what the sneaker is selling for on StockX, GOAT, and eBay. No searching. No guessing. Just scan and see the profit potential. Sneaker Scanner even calculates the estimated resale profit based on the retail price so you can quickly spot good flips while sourcing in stores, outlets, or thrift shops. Whether you’re at a retail store, outlet, thrift shop, or reseller event, you can quickly evaluate if a pair is worth buying. FEATURES • Scan shoe labels using advanced OCR • Scan barcodes (UPC / EAN / GTIN) • Instant model identification • Live resale price comparisons • Platform-specific pricing from StockX, GOAT, and eBay • Automatic profit calculations against retail price • Clean, fast, camera-first workflow HOW IT WORKS 1. Scan the label or barcode 2. Enter the retail price you see in-store 3. View resale prices across platforms 4. Instantly see estimated profit potential Sneaker Scanner is built for sneaker resellers, flippers, and collectors who want fast, data-driven buying decisions. Please note: Resale pricing data is sourced from third-party marketplaces. Prices may fluctuate and are provided for informational purposes only. Make smarter sneaker decisions with confidence. Terms of Service: terms.sneakscan.com
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/native
expo-camera
BUILD KIT DIFFICULTY
Intermediate
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.
