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
9Goal Football
9Goal Football isn't just another scores app - it's your personalized portal to the beautiful game
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.1
27 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.
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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 9Goal Football: 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
9Goal Football isn't just another scores app - it's your personalized portal to the beautiful game. Go beyond the final whistle and delve into a world of in-depth analysis, real-time updates, and expert insights. Unparalleled Match Coverage: * Curated Fixtures: Stay ahead of the curve with today's matches, upcoming clashes, and a comprehensive league-by-league breakdown. * Live Match Center: Immerse yourself in the action with live scores, upcoming matches, and in-depth analysis at your fingertips. * Favorite Teams & Leagues: Personalize your experience by following your favorite teams and leagues for quick access to all their news and fixtures. Expert Insights and Stats: * Transfer Tracker: Stay updated on the latest player movements with comprehensive transfer news. * Tailored News Feed: Get the most relevant news delivered to you, with the option to filter by league for a laser focus on your interests. * Match Details: Go beyond the scoreline with pre-match previews, head-to-head stats, in-game events, and expert predictions. * Detailed Team & League Pages: Uncover team standings, upcoming fixtures, player rosters, and in-depth league information. Unmissable Features: * Match Statistics: Dive into a treasure trove of match stats, including shots, fouls, corners, and more, to understand the tactical nuances of the game. * Lineups: Get a clear picture of who's taking the field with pre-match lineups for every encounter. Download 9Goal Football today and become a true football expert!
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
Provide more detailed stats and user-generated content.
Assumption to check: Limited player and team information compared to competitor apps
Validate with people who use this workflow before building.
Hypothesis 2
Optimize performance for better stability.
Assumption to check: Occasional crashes during peak usage
Validate with people who use this workflow before building.
Hypothesis 3
Clearly define benefits of premium features.
Assumption to check: In-app purchases lack clear value proposition
Validate with people who use this workflow before building.
Hypothesis 4
Revamp UI with modern design elements.
Assumption to check: User interface feels outdated
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
Supabase
React Query
Zustand
React Navigation
BUILD KIT DIFFICULTY
Advanced
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.
