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.
Pay once
$4.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Cardline - Scan Business Cards: 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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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
Assumption to check: Users often find scanning accuracy to be inconsistent.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited sharing options for scanned contacts.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor organization of scanned cards.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Subscription model is unclear to users.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Pay once. Own it forever. No subscription. No accounts. No ads. No tracking. No cloud. Your scans, notes, and contacts stay on your device. Cardline is a business-card scanner and lightweight contact CRM for people who meet a lot of people and do not want the follow-up to disappear into a camera roll. Capture a card, review the details, and save a complete contact in seconds. Cardline uses on-device text recognition to extract names, companies, titles, email addresses, phone numbers, websites, and LinkedIn profiles, then lets you confirm everything before it is stored. Built for conferences, meetups, sales calls, investor chats, recruiting, and any moment where a quick introduction can turn into something worth remembering. What you can do with Cardline: - Scan business cards with your camera - Import an existing card image from Photos - Review and edit every extracted field before saving - Organize contacts by company, event, and follow-up status - Add notes, context, dates, venues, and reminders - Track overdue and upcoming follow-ups - Share your own card with a QR code or vCard - Export contacts as JSON or CSV when you need your data elsewhere - Optionally save new scans to the system Contacts app Privacy is simple: Cardline is local-only. There are no accounts, no ads, no tracking, no analytics SDKs, and no cloud sync. Your scanned cards, notes, reminders, and saved contacts stay on your device unless you choose to share or export them. Cardline is designed for quick capture in the moment and calmer follow-through later: scan the card, keep the context, remember the next step.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.