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
Gotham Sports
Gotham Sports is the new streaming home for the New York Yankees, the New York Knicks, the Brooklyn Nets, the New York Rangers, the New York Islanders, the New Jersey Devils, the Buffalo Sabres, and more all in one, e...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.1
9,005 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 Gotham Sports: 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
Gotham Sports is the new streaming home for the New York Yankees, the New York Knicks, the Brooklyn Nets, the New York Rangers, the New York Islanders, the New Jersey Devils, the Buffalo Sabres, and more all in one, easy-to-use app. Access to Gotham Sports includes: o Live games and full game replays o Hometown coverage and in-depth analysis o Award-winning original programming and exclusive content o Play-by-play stats and Pick-N-Play predictor game with prizes o Gotham Sports rewards program There are two ways fans can get access to Gotham Sports: 1. Free with an eligible cable subscription: if you have access YES Network and MSG Network as part of your cable subscription, you’ll have free access to Gotham Sports. Just download the app, create a free account, and link your cable subscription account. 2. Subscribe directly to Gotham Sports: if you don’t have access to an eligible TV subscription, you can subscribe directly in the Gotham Sports app. Location restrictions: o Gotham Sports will only stream games that are available on the YES Network and MSG Network. Local blackout restrictions apply. o League and programming restrictions require Gotham Sports mobile & tablet users to turn on location services. Gotham Sports will use location services to determine what content users are eligible to view. Gotham Sports is only available in the continental US. Please refer to Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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 custom feed based on user preferences.
Assumption to check: Limited content personalization options
Validate with people who use this workflow before building.
Hypothesis 2
Optimize image loading and data fetching.
Assumption to check: Slow loading times for news articles
Validate with people who use this workflow before building.
Hypothesis 3
Enhance visibility and explanations of premium features.
Assumption to check: In-app purchase clarity is lacking
Validate with people who use this workflow before building.
Hypothesis 4
Simplify navigation structure for better user flow.
Assumption to check: Navigation can be confusing
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
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Axios
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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.
