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 Studio Pro-QR Scanner
QR Studio Pro reinvents QR Code Reader and Generator
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.2
18 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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
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Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 Studio Pro-QR Scanner: 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
Provide more templates and design options for users.
Assumption to check: Limited customization options for generated QR codes
Validate with people who use this workflow before building.
Hypothesis 2
Enhance camera features or add a flashlight option.
Assumption to check: Inconsistent scanning performance in low-light conditions
Validate with people who use this workflow before building.
Hypothesis 3
Integrate direct sharing options to popular social media apps.
Assumption to check: Lack of sharing options to social media platforms
Validate with people who use this workflow before building.
Hypothesis 4
Add analytics features to track scan frequency and trends.
Assumption to check: No detailed analytics on scanned codes
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
QR Studio Pro reinvents QR Code Reader and Generator. It helps you to create Colorful QR code either for business or showing love. Now you can turn image, video, voice and music into QR Code. You can also create Dynamic QR Code, which allows to change the content of your QR codes after being used. It is very simple and just enjoy it with you unlimited imagination! 【FEATURES】 ● Create your own Colorful QR code - There are a variety of formats for you to create, such as text, website, image, video, voice, music, business card, WIFI, App QR Code, Bitcoin and so on. Moreover, there are a lot of fabulous colorful styles to choose. - Dynamic QR Code makes the image of QR Code remain the same but its content can be modified at any time. The effectiveness of it can be set too. - Fused QR Code fuses QR code and colorful image perfectly. - App QR Code allows different OS to redirect to different link. It redirects to suitable links you set when it is scanned by iPhone or other operation systems. - LinkSet QR Code lets users open different link when using different App scan. - Generate Taobao QR Code that works for Wechat to offer good user experience. - Beautify any QR code with 3 steps easily. - Embed your favorite picture as Logo to make your character QR code. ● The fastest QR code Reader - Scans QR code with Dual Scan Core and gives the result very fast. You can also copy and paste or import a QR Code image to the app at anytime and get the result. - It works whether there is network or not and scan history is saved automatically. - Multiscan allows you scan a number of QR codes continuously and shows the results swiftly. ● Share securely - Encrypt and share securely the QR Code to friends. The content of QR Code can only be seen after entering correct password after encryption. ● History management and privacy protection - Saves scan and generation history automatically for management. - Check Number of Scans and Total number can be scanned of Multimedia QR Code. - Touch ID is here for your privacy protection. ● speech recognizing and iMessage (iOS 10 and above) - What you speak can be recognized as text content to be created as a QR code. - You can create a QR Code in iMessage with this App. ● Spotlight Search (iOS 9 and above) - Use Spotlight to search for content of Scan and Generation and open it directly in QR Studio’s Detail Page. ● App action extension (iOS 8 and above) - You can use it to scan and generate QR code in other Apps on iOS 8 devices. ● 3D Touch feature (iPhone 6s and above) - Quick Actions from the iPhone Home screen: Create test QR, Create Contact QR, Beautify QR and Manage History. There is no advertisement in this app. Besides, you can enjoy sharing wonderful QR code images without watermark to others. Enjoy creating image/ video/voice/music/business card/App/Taobao QR code freely with unlimited times. 【Feedback】 - App feedback：About- Feedback - Official QQ Group：475041343 - Wechat account：vDreamerTeam - Weibo：@vDreamerTeam
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
react-native-qrcode-svg
@react-native-async-storage/async-storage
expo-camera
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.
