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
FanDuel Casino - Real Money
FanDuel Casino is the #1 Rated Online Casino app, where you can play fully regulated online casino games for real money in Michigan, Pennsylvania, New Jersey, and West Virginia
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.8
206,431 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.
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 included
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.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
FanDuel Casino is the #1 Rated Online Casino app, where you can play fully regulated online casino games for real money in Michigan, Pennsylvania, New Jersey, and West Virginia. Enjoy a superior online gaming experience and play all your favorite casino games like slots, blackjack, and video poker just like you would find on the casino floor - anywhere you have a signal! You can enjoy the same convenience, safety, and security you have come to know and expect from FanDuel. Getting started at FanDuel Casino is quick and simple: • Download the app and create your account (or login with your existing FanDuel account) • Make your first deposit • Play it Again up to $50 if you're down after your first day! • Plus, now new players will get 500 Bonus Spins with their first deposit! Why play with FanDuel Casino: • We play fair! With 1x Playthrough on EVERY Casino Promo, you can turn your bonus into cash faster. • Easy Payments: We offer simple deposits and fast, secure withdrawals • Best In Class customer support • To spin Reward Machine, your daily FREE chance to win prizes like Bonus Spins and Casino Bonus, including Jackpots of up to $3000! What games are on FanDuel Casino: • The top Exclusive slots from popular franchises like Huff N Puff & Samurai 888 • Hundreds of other casino favorites: Buffalo, Cash Eruption, Crazy Time & more! • America’s #1 Online Live Casino Experience! • All of your favorite table games: Blackjack, Roulette, Craps, Video Poker & Baccarat • and much, much more! Download today for FREE and get in on the action today! Gambling Problem? Call 1-800-GAMBLER. 21+ and present in NJ, MI, PA or WV. #1 rating based on combined customer rating across top 2 US app stores. #1 online based on GGR data collected as of 09/24. For Play It Again offer: Must not have previously placed any wager on FanDuel Sportsbook, FanDuel Casino, Betfair Casino or Mohegan Sun Casino. Refund amount based on net loss after first 24 hours of play. Refund issued as non-withdrawable Casino site credit that expires 7 days after receipt. For Bonus Spins offer: $10 first deposit req. Bonus issued as non-withdrawable bonus spins that expire 7 days after receipt. Bonus spins are received in increments of 50 and may only be used in the state of first deposit and on select games. Restrictions apply. To see terms for both offers, including eligible games, visit fanduel.com/casino.
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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.
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
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
