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
QR Code Scanner Pro *
Scan, create, and manage every QR code and barcode — all in one beautifully simple app
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
325 ratings · Top 30%
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/
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 QR Code Scanner Pro *: 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
Allow users to add notes or tags to each QR code.
Assumption to check: Limited customization options for scanned QR codes
Validate with people who use this workflow before building.
Hypothesis 2
Optimize camera performance and scanning algorithm.
Assumption to check: Performance issues when scanning multiple QR codes in quick succession
Validate with people who use this workflow before building.
Hypothesis 3
Implement cloud sync features for user history.
Assumption to check: No cloud backup for saved QR codes
Validate with people who use this workflow before building.
Hypothesis 4
Provide in-app help and better FAQs.
Assumption to check: Lack of user support and documentation
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
Scan, create, and manage every QR code and barcode — all in one beautifully simple app. QR Code Scanner Pro is the fastest way to read codes, generate your own, and keep everything organized. SCAN ANYTHING, INSTANTLY • Point your camera and get instant results for QR codes and barcodes • Read product barcodes to check items, prices, and food labels • Auto-scan mode detects codes hands-free • Open links, add contacts, connect to Wi-Fi, and more in one tap CREATE CUSTOM QR CODES • Generate codes for SMS, phone, email, and Wi-Fi • Social links: Instagram, TikTok, Telegram, WhatsApp, Facebook, Spotify and more • URLs, contacts, locations, and plain text • Customize colors and share your codes anywhere in seconds STAY ORGANIZED • Every scan and creation is saved to your history • Find, reuse, and share past codes anytime • Light and dark mode, clean and intuitive design WHY QR CODE SCANNER PRO • Fast and accurate scanning • Simple, modern interface • Everything you need in one app Download QR Code Scanner Pro and turn your camera into the only code scanner and generator you'll ever need. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://qrcodescannerpro.com/privacy
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
React Navigation
Async Storage
Expo Camera
TypeScript
BUILD KIT DIFFICULTY
Starter
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.
