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
HeritCoin :AI Identify Coins
Discover the Value of Your Coins & Banknotes with HeritCoin
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
4,355 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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What's included15 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 HeritCoin :AI Identify Coins: 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
Incorporate user-generated content for better database.
Assumption to check: Limited coin database leads to inaccurate identifications.
Validate with people who use this workflow before building.
Hypothesis 2
Provide clear explanations of benefits and easy navigation to subscription options.
Assumption to check: In-app purchases can be confusing for users.
Validate with people who use this workflow before building.
Hypothesis 3
Implement device compatibility checks and offer manual identification as a fallback.
Assumption to check: Camera functionality may not work well on all devices.
Validate with people who use this workflow before building.
Hypothesis 4
Add a social feature for users to share findings and discuss coins.
Assumption to check: Lack of community features like discussions or forums.
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
Discover the Value of Your Coins & Banknotes with HeritCoin HeritCoin is the ultimate app for identifying, authenticating, and valuing coins and banknotes. Powered by AI technology and professional appraisal services, HeritCoin makes it easier than ever to enhance your numismatic collection. Whether you’re a numismatist, collector, or hobbyist, HeritCoin offers accurate results to help you understand the true value of your items. Key Features: Effortless Identification Simply take a photo of your coin or banknote, and HeritCoin uses advanced AI recognition to instantly provide details such as the name, year, material, weight, and more. Expert Appraisal Services Need a professional opinion? HeritCoin connects you with numismatic experts for precise authentication and valuation, ensuring your collection is accurately assessed. Accurate Valuations Based on Market Data HeritCoin offers price estimates based on real-time market trends, auction results, and historical data, giving you confidence in the value of your items. Comprehensive Recognition HeritCoin can identify a wide range of coins and banknotes, from modern U.S. currency to rare ancient relics, including error coins and more. Organize Your Collection Easily manage and track your collection with an intuitive app interface. Gain new insights and better organize your items as you scan them. How It Works: 1. Take a photo of both sides of a coin or banknote. 2. Receive detailed information, including specifications, value, and historical context. Why Choose HeritCoin? • AI & Expert-Powered Identification: Trust in AI technology and numismatic professionals for the most reliable results. • User-Friendly: Simple and quick identification steps make it easy for collectors of all experience levels. • Wide Range: From rare ancient coins to modern banknotes, HeritCoin identifies all types of currency. • Constantly Improving: Enjoy a regularly updated database and new features that enhance your experience. Stay Tuned for New Features! We’re continuously working on new features to improve your experience with HeritCoin. Stay tuned for exciting updates! Join Our Coin Collection Family TikTok: https://www.tiktok.com/@heritcoin Facebook: https://www.facebook.com/heritcoin WhatsApp: +1 (213) 258-8430 Your Privacy Matters All your personal data is handled with care and protected in accordance with our Terms of Use and Privacy Policy Privacy Policy: https://www.heritcoin.com/privacy-policy Terms of Use: https://www.heritcoin.com/terms-of-use Download HeritCoin Today and Start Your Coin Collecting Journey! Discover the value of your collection, track its worth, and learn more about the fascinating world of numismatics with HeritCoin.
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
React Navigation
Zustand
TypeScript
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.
