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
CardHQ - Business Card Reader
CardHQ is 3 times faster than other name card scanner apps and it's forever free without ads
$12.99 · In-app purchases
PRICE
$12.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.2
30 ratings · Below Average
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 CardHQ - Business Card Reader: map the core Business 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 OCR technology for better recognition.
Assumption to check: Limited scanning accuracy for complex cards
Validate with people who use this workflow before building.
Hypothesis 2
Design a modern, clean interface with improved UX.
Assumption to check: UI feels outdated and cluttered
Validate with people who use this workflow before building.
Hypothesis 3
Integrate in-app support chat for immediate assistance.
Assumption to check: Poor customer support and response time
Validate with people who use this workflow before building.
Hypothesis 4
Offer a freemium model with essential features to attract users.
Assumption to check: High price point compared to alternatives
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
CardHQ is 3 times faster than other name card scanner apps and it's forever free without ads. It's only 12MB. Features: • Scan unlimited name cards without any fees • Scan cards 3 times faster than other apps (as fast as 3 seconds)* • Detect text 3 times more accurate than others (as accurate as 100%)* • Share cards on Email, Whatsapp, WeChat, Line, Facebook, Twitter, anything! • Search for cards like searching on Google • Auto send introduction email for each name card scanned • Scan multiple cards at once • Auto backups all cards • Simple user interface, like Whatsapp and SnapChat Supported languages: • Chinese Simplified • Chinese Traditional • Czech • Danish • Dutch • English • Finnish • French • German • Greek • Hungarian • Italian • Japanese • Korean • Norwegian • Polish • Portuguese • Russian • Spanish • Swedish • Turkish * Speed of scanning and text detection depend on your Internet speed and clarity of the photo taken. Our tests showed speed as fast as 3 seconds and accuracy as high as 100%
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/native
expo-camera
react-native-share
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.
