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
FIFA Official App
Welcome to the FIFA Official App Built for fans who live and breathe the game
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
2,168 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 FIFA Official App: 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
Implement optimized data fetching and caching.
Assumption to check: Inconsistent performance and slow loading times
Validate with people who use this workflow before building.
Hypothesis 2
Add user preferences for favorite teams and notifications.
Assumption to check: Limited user personalization features
Validate with people who use this workflow before building.
Hypothesis 3
Simplify navigation and enhance visual hierarchy.
Assumption to check: Cluttered UI with too much information
Validate with people who use this workflow before building.
Hypothesis 4
Create a dedicated support section with FAQs and chat support.
Assumption to check: Poor customer support for premium features
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
Welcome to the FIFA Official App Built for fans who live and breathe the game. Whether you’re tracking your club, dominating in fantasy football, or following the road to the FIFA World Cup 2026™, the FIFA app delivers the beautiful game in a bold, seamless interface. The ultimate football companion: Real-time Match Centre: Follow the action with live scores, stats, line-ups, and key moments from club and international football. Daily Insights & Analysis: Dive into tactical breakdowns, exclusive interviews, and expert commentary. Play Zone: Build your fantasy squad, play the Brackets Challenge or Predictor, and climb the leaderboards. Smart Notifications: Get personalized match alerts and team news tailored to your favorites. FIFA World Cup 2026 Coverage: Track every qualifier, standings, and exclusive story as the tournament approaches. Looking for tickets? The FIFA Official App is your hub for news, games, and matchday info. To access and manage your match tickets, please download the standalone FWC2026 Mobile Tickets app. We’ve included a direct shortcut inside this app to help you get there in one tap! Download now. The tournament starts with you.
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.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
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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.
