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
Consumer Reports
The Consumer Reports app is your on-the-go companion for shopping, savings, product comparisons, ratings, and more
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
63,963 ratings · Top 5%
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
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A product spec, screen plans, and build steps for your coding agent.
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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 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 Consumer Reports: map the core Shopping 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
Offer more free content to engage users.
Assumption to check: Limited access to premium content without a subscription.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify navigation and layout for a cleaner experience.
Assumption to check: User interface can be overwhelming with too much information.
Validate with people who use this workflow before building.
Hypothesis 3
Optimize image loading and data fetching.
Assumption to check: Slow loading times for content-heavy sections.
Validate with people who use this workflow before building.
Hypothesis 4
Implement a recommendation engine based on user preferences.
Assumption to check: Lack of personalized recommendations.
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
The Consumer Reports app is your on-the-go companion for shopping, savings, product comparisons, ratings, and more. Consumer Reports is free to download and gives you instant access to our Bill Negotiator tool, Buying Guides, and limited access to AskCR, our smart advisor that answers your research, shopping, and product questions in seconds. When you support the work of Consumer Reports through a paid Membership, you’ll also gain access to: • Unlimited chats with AskCR • Extra savings with Bill Negotiator • Exclusive Members-only deals and discounts • Image Scan to quickly identify, compare, and shop for products • Ratings and reviews for 10,000+ products and services • Smarter purchases with tools like Best Time to Buy and CR Recommended • Additional Member benefits and access to exclusive partnerships As a nonprofit and independent organization, CR purchases every product we test and never accepts advertising, ensuring you get unbiased insights from your product research. Make confident buying decisions with trusted reviews, personalized recommendations, and expert shopping guides. Your purchase of a Consumer Reports Membership also gives you full access to Consumer Reports Online (consumerreports.org), where you’ll find additional tools and benefits designed to simplify your product decisions, make smarter choices for your family, and save time and money. Not a Member? Sign up for a Digital CR membership directly in the app for monthly or annual access to all Membership features. Download now and make confident decisions with Consumer Reports by your side!
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
Axios
Zustand
react-navigation
react-native-paper
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.
