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
Cardnor – Scan Business Cards
Turn paper into a contact—in seconds.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included15 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 Cardnor – Scan Business Cards: map the core Productivity 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 AI-driven image recognition to improve accuracy.
Assumption to check: Users find scanning inconsistent, leading to missed information.
Validate with people who use this workflow before building.
Hypothesis 2
Add tagging and categorization features for easier sorting.
Assumption to check: Limited options for organizing contacts.
Validate with people who use this workflow before building.
Hypothesis 3
Provide clear explanations of benefits for each subscription tier.
Assumption to check: Subscription model can be confusing.
Validate with people who use this workflow before building.
Hypothesis 4
Introduce cloud sync and backup features for user peace of mind.
Assumption to check: No backup options for contacts.
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
Turn paper into a contact—in seconds. Cardnor eliminates the need to manually type information from business cards. Simply take a photo of a card, and Cardnor automatically recognizes the name, company, phone number, and email address. Review, refine, save—done. It’s that simple: Scan in Seconds Point your camera at a business card—OCR and AI automatically create a clean contact. Review & Refine Edit every field before saving. Add a contact photo from your photo library or search the web directly. Save Securely to Your Contacts Save each card to the address book of your choice. Cardnor detects duplicates to keep your contacts organized. Stay Organized The dashboard gives you an overview of scanned cards, imported contacts, and your weekly activity at a glance. Your data stays yours. Cardnor works directly on your device—without requiring the cloud. Your contacts belong to you. Additional Features: * Intelligent duplicate detection * Export as vCard for easy sharing * Contact photos from your photo library or web search * Light and dark mode * Available in 5 languages: German, English, French, Spanish, and Italian Download Cardnor today and grow your network—without typing a single character.
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-async-storage
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.
