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
Copart - Online Auto Auctions
Find more than 175,000 cars, trucks, SUVs motorcycles, boats, classics, exotics and more with the Copart Mobile App
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
185,186 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.
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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/
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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 Copart - Online Auto Auctions: 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
Simplify the layout and improve the organization of information.
Assumption to check: Users report difficulty in navigating the app due to cluttered screens.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a guided tutorial for first-time bidders.
Assumption to check: Bidding process can be confusing for new users.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance search with more filters and sorting options.
Assumption to check: The search function lacks advanced filtering options.
Validate with people who use this workflow before building.
Hypothesis 4
Clearly communicate the benefits of subscription tiers.
Assumption to check: In-app purchases can be misleading.
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
Find more than 175,000 cars, trucks, SUVs motorcycles, boats, classics, exotics and more with the Copart Mobile App. Using the Copart Mobile App, Basic and Premier Members can bid on and win vehicles quickly and easily from any mobile device. Copart features thousands of used car auctions with both salvage and clean title vehicles available every day. The Copart App allows Basic and Premier Members to participate in insurance auto auctions that feature used cars, repossessions and more. And best of all, Copart Basic and Premier Members can access these used car auctions from anywhere with an internet connection. Members will be able to find vehicles like “salvage cars for sale” by type, year, make, model and location as well as stay informed about vehicles on their Watchlist. Copart Basic and Premier Members can also use the app to get notified about the results of their car auctions. Not a Copart Member? Register with the Copart Mobile App to participate in thousands of 100% online auto auctions hassle-free! Features: • Vehicle recommendations based on your personal preferences • Enhanced dashboard and navigation menu • Voice Search to quickly find vehicles • Welcome Tour for new users to explore the app’s top features • Convenient access to online auctions, vehicle finder, and search history • Manage Watchlist, saved searches and pre-bids • Search over 175,000 vehicles in online auto auctions by location, date, and vehicle type • View full-screen photos and details for any car or truck • Quickly search global inventory for vehicles by make, model, year, location and more • Receive notifications about counterbid offers, auctions won, auctions lost and Watchlist vehicles • View AutoCheck vehicle history reports and Copart Condition Reports • Make payments and view payments due / payments history • Attend live online auctions and place bids from anywhere
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
Supabase
Axios
react-navigation
react-native-reanimated
BUILD KIT DIFFICULTY
Expert
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.
