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 & Barcode Scanner ・
Discover your world by scanning any QR code or barcode to get additional information including results from popular online services; Amazon, eBay and Google - 100% FREE! Create and share QR codes to open URLs, connect...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
90,020 ratings · Top 15%
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 included18 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 & Barcode Scanner ・: map the core Utilities 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
Include more advanced scanning options and integrations.
Assumption to check: Limited features compared to premium alternatives
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more user-friendly ad display or subscription model.
Assumption to check: Ads can be intrusive
Validate with people who use this workflow before building.
Hypothesis 3
Optimize for faster scanning and processing.
Assumption to check: Performance issues with high-resolution scans
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize the app's theme and functionality.
Assumption to check: Lack of customization options
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 your world by scanning any QR code or barcode to get additional information including results from popular online services; Amazon, eBay and Google - 100% FREE! Create and share QR codes to open URLs, connect to WiFi hotspots, add events, read VCards, etc. You can even manage complex inventory with the business scanner mode and more. With QRbot, you can; • Scan, create, share and manage your own QR codes. QRbot uses Apple's built-in native scanning technology delivering quick results. Code formats supported include; QR code, EAN 13, EAN 8, UPC-A, UPC-E, Code 128, Data Matrix, PDF417, Aztec, Interleaved 2 of 5, Code 39, Code 93, Codabar, DataBar, etc. • Get specific information by adding custom websites into the barcode search (i.e. your favorite shopping website). • Manage unlimited history and keep it synchronized via iCloud across all your devices. • Export your scan history (as CSV file). Import it to your favorite spreadsheet (Excel, Numbers, etc.) or save it to any cloud storage (iCloud Drive, Dropbox, Google Drive, etc.). • Instantly send your codes to any configurable web server in Business Scanner Mode. • Use QRbot for product inventory and quality assurance in your small business! • Easily share content from within apps as QR codes (i.e. generate a QR code from within Safari to share a website URL). • Search all your QR codes from within Spotlight. • Make your favorite QR codes (e.g. your personal Wifi hotspot, your VCard) appear on your Apple Watch. • Many many more! If you have any suggestions or questions, feel free to contact us any time: [email protected] Terms of Service https://qrbot.net/terms-app QR Code is a registered trademark of DENSO WAVE INCORPORATED in the United States and other countries.
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
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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.
