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 Sports Network
Watch hundreds of live, local games across multiple leagues, including MLB, NBA, NHL, WNBA, Professional Women’s Hockey League (PWHL), Athletes Unlimited, and more
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.3
121,825 ratings · Top 30%
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 FanDuel Sports Network: 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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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
Watch hundreds of live, local games across multiple leagues, including MLB, NBA, NHL, WNBA, Professional Women’s Hockey League (PWHL), Athletes Unlimited, and more. Select your favorite teams to get the games and coverage that matter most to you. With FanDuel Sports Network, there are two ways to watch: subscribe or connect with your TV provider. To watch using the app, just log-in to your FanDuel Sports Network account. MLB teams include Atlanta Braves, Cincinnati Reds, Detroit Tigers, Kansas City Royals, Los Angeles Angels, Miami Marlins, Milwaukee Brewers, St. Louis Cardinals, and Tampa Bay Rays -- subject to availability in your home zip code. Subscribe to FanDuel Sports Network: * FanDuel Sports Network has monthly, seasonal, and annual subscription plans. To stream the teams and sports you love, just follow these steps: Download the free app * Subscribe to FanDuel Sports Network * Start streaming Sign in with your TV provider: If your TV provider has FanDuel Sports Network in its channel lineup, streaming is simple: * Download the FanDuel Sports Network app for free * Create a FanDuel Sports Network account, or sign in with your FanDuel Sports Network login * Connect with your TV provider credentials * Choose your favorite teams * Start streaming If you have a cable, satellite or streaming provider, you can enjoy FanDuel Sports Network through your channel lineup or stream using the FanDuel Sports Network app. Use your TV provider credentials to log-in. Visit FanDuelSportsNetwork.com to see what programming is available based on your home zip code.
Written user reviews are not shown here. Check current App Store reviews >
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
Implement a real-time update feature for live events.
Assumption to check: Inconsistent updates on live events
Validate with people who use this workflow before building.
Hypothesis 2
Provide advanced filtering and sorting options.
Assumption to check: Limited filtering options for news articles
Validate with people who use this workflow before building.
Hypothesis 3
Simplify subscription tiers and provide clear benefits.
Assumption to check: Subscription confusion among users
Validate with people who use this workflow before building.
Hypothesis 4
Add user forums or chat features for engagement.
Assumption to check: Lack of community features
Validate with people who use this workflow before building.
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 Query
Firebase
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.
