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
Cup Guide 2026
The 2026 tournament is happening
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
9 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.
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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 Cup Guide 2026: 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
Enhance content with more detailed stats and player profiles.
Assumption to check: Limited content for specific teams or players
Validate with people who use this workflow before building.
Hypothesis 2
Streamline UI for better user navigation and experience.
Assumption to check: Cluttered interface with too much information
Validate with people who use this workflow before building.
Hypothesis 3
Implement more subtle prompts for premium features.
Assumption to check: In-app purchase prompts can be intrusive
Validate with people who use this workflow before building.
Hypothesis 4
Provide live updates and notifications for matches.
Assumption to check: Lack of real-time updates for match schedules
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
The 2026 tournament is happening. Don't show up unprepared. Cup Guide 26 is the unofficial fan companion built for people who are actually there. Live scores, stadium guides, full schedule, bracket tracking — all in one place, all offline-ready. --- HOME SCREEN WIDGET Keep the score on your lock screen or home screen without opening the app. See live scores, the match clock, and goal scorers at a glance — updated in real time. LIVE SCORES & GOAL SCORERS Real-time scores and the match clock through halftime, extra time, and penalties. See who scored and when — on the main card the moment it happens. ALL 104 MATCHES Full tournament schedule with filters by team, city, or stage. Star your games. Never miss a kickoff. YOUR TEAM'S ROAD TO THE FINAL Pick your nation and follow every fixture from Group Stage to the Final. Every opponent, every result — personalized to the team you care about. STADIUM & CITY GUIDES Venue maps, transit routes, and step-by-step matchday checklists for all 16 host cities. Works without Wi-Fi. BUILD YOUR BRACKET Predict the knockout rounds. Simulate any matchup between all 48 nations and share your picks before they happen. PLAYER SPOTLIGHTS Stats, caps, goals, and photos for the stars of the tournament — across every nation. MATCH NEWS The Guardian, Marca, L'Equipe, Lance!, BBC — every angle, one feed. --- US · Canada · Mexico · 16 cities · 104 matches Unofficial fan guide. Free to download.
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
Zustand
Supabase
React Navigation
Axios
BUILD KIT DIFFICULTY
Intermediate
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.
