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
William Hill Nevada
william hill is nevada's largest sportsbook, and an official sports betting partner of the nfl
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
7,761 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 included17 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 William Hill Nevada: 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
Simplify the betting process with guided tutorials.
Assumption to check: Complex betting interface can overwhelm new users.
Validate with people who use this workflow before building.
Hypothesis 2
Expand to include more sports and events.
Assumption to check: Limited sports coverage compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 3
Improve app stability and performance.
Assumption to check: Occasional crashes during peak usage.
Validate with people who use this workflow before building.
Hypothesis 4
Implement real-time odds tracking for better user experience.
Assumption to check: Inconsistent odds updates can lead to confusion.
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
william hill is nevada's largest sportsbook, and an official sports betting partner of the nfl. the updated app now lets you bet on your favorite sports at any time of day, from anywhere in nevada. bet with an expansive menu including live betting, parlays, same game parlays, super parlays, or odds boosts. you can even choose from a variety of pre-built, prop-filled parlays with quick picks. we also have a new cash out feature which gives you an early payout before the game is even finished. our registration process is the easiest and most secure in nevada. create an account now, then head to one of over 100 sportsbook across nevada to complete your registration. once signed up, you'll have the widest array of deposit options in the state: debit/credit cards, paypal, cash deposits at one of our sportsbooks and more. so download the william hill sportsbook app for free today. how to get started: - download the william hill sportsbook app, or update your existing william hill nevada app. - click on the top right-hand corner and follow the prompts to create your account. - follow instructions to proceed to a property to complete registration. must be 21 or older to gamble. know when to stop before you start.® gambling problem? when the fun stops, call 1-800-522-4700 or visit nevadacouncil.org.
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.
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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.
