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
Texas Motor Speedway
Welcome to the official app of the Texas Motor Speedway, bringing fans closer to the action and enriching your event experience
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 3.6
32 ratings · Top 50%
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.
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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 Texas Motor Speedway: map the core Sports 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 richer media content and detailed descriptions.
Assumption to check: Limited event details and images for users.
Validate with people who use this workflow before building.
Hypothesis 2
Streamline ticket purchasing with clearer steps.
Assumption to check: In-app purchase process can be confusing.
Validate with people who use this workflow before building.
Hypothesis 3
Implement a more organized structure with fewer tabs or sections.
Assumption to check: Navigation can feel cluttered.
Validate with people who use this workflow before building.
Hypothesis 4
Optimize app performance with better load handling.
Assumption to check: User reviews indicate performance issues during peak times.
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
Welcome to the official app of the Texas Motor Speedway, bringing fans closer to the action and enriching your event experience. Get all the info you need for race day and beyond, plus exclusive content, and personalized offers and experiences. This is a mobile experience to help you find what you love whether it’s event information, special access, or offers and discounts. Powered by Uphoria. Features include: • Event details and information • The latest news, photos, and videos • Personalized offers and content • Exclusive experience and entertainment opportunities • Live audio of the broadcast • Take pictures at the events using Fan Cam. Choose from exclusive overlays, share your pictures with TMS, post to social media and save to your photos. • Fan guides • Event schedules • Ticket information including ability to request tickets or links to purchase • Browse and interact with TMS Twitter and Instagram feeds right in the app • Venue maps and directions • Submit comments to share a great experience or suggest improvements to TMS • Much more to come in future releases!
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
Zustand
react-native-reanimated
expo-router
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.
