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
The Dofu - Live Sports Scores
The Direct Online Football Updates (Dofu) - Your Best Sports Friend
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.0
2,512 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included15 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 The Dofu - Live Sports Scores: 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 a more accessible tab navigation and quick filters for sports.
Assumption to check: Users find it difficult to navigate through various sports quickly.
Validate with people who use this workflow before building.
Hypothesis 2
Use real-time data fetching with WebSocket for live scores.
Assumption to check: Live updates can sometimes lag or be inaccurate.
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize notifications and favorite teams more easily.
Assumption to check: Limited customization for favorite teams.
Validate with people who use this workflow before building.
Hypothesis 4
Offer a more user-friendly ad experience or ad-free subscription option.
Assumption to check: Ads can be intrusive.
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 Direct Online Football Updates (Dofu) - Your Best Sports Friend The Dofu is your all-in-one live sports daily friend. Follow live scores, match details, league standings, and video highlights across 6 sports — all in one beautifully designed app. SPORTS COVERED • Soccer — Premier League, La Liga, Serie A, Bundesliga, Ligue 1, Champions League, and 100+ leagues worldwide • American Football — NFL, NCAA, and more • Baseball — MLB, NCAA, and international leagues • Basketball — NBA, EuroLeague, NBL, PBA, and 50+ global leagues • Cricket — IPL, PSL, Big Bash League, international Tests, ODIs, and T20s • Hockey — NHL, ECHL, KHL, DEL, SHL, and leagues across Europe and North America LIVE SCORES Real-time match updates with sport-specific live indicators. See the exact minute in soccer, current inning in baseball, quarter in basketball, period in hockey, and overs in cricket. Never miss a moment. ALL GAMES Browse every match by date. Swipe through days to find upcoming, live, and completed games across every league. Matches grouped by league with live match counts. MATCH DETAILS Tap any match for a deep dive. View team lineups, match statistics, event timelines, and play-by-play — all tailored to each sport. Soccer shows formations and cards. Baseball shows rosters and pitch-by-pitch plays. Cricket shows squad lists and top performers. LEAGUE STANDINGS Track your favorite leagues with full standings tables. Browse by season, conference, and division. Available for every sport with wins, losses, points, goal/run differentials, and more. VIDEO HIGHLIGHTS Watch the best moments from every sport. Highlights aggregated from YouTube, ESPN, and verified sources — updated daily. Source badges on every video. Watch directly in the app or open in your browser. FAVORITES Save your favorite matches and leagues. Grouped by sport for easy access. Scores and statuses auto-refresh so you always see the latest data. Access match details and standings from favorites regardless of which sport you're currently browsing. MERCH STORE Shop the official Dofu collection directly in the app. Browse "Eat Sleep [Sport] Repeat" t-shirts for all 6 sports. Swipe through product photos and check out on Etsy. PREMIUM FEATURES Upgrade to Premium for the ultimate sports experience: • Ad-free browsing • Unlimited favorites • Full match details (lineups, stats, timeline) • Daily video highlights • Complete league standings access Download The Dofu and follow every sport, every league, every match — all in one place. — EULA http://bit.ly/3JiQgjX — Privacy Policy http://bit.ly/3JJcmfi — Terms Of Service http://bit.ly/47EDUwq
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
axios
react-query
@react-navigation/native
TypeScript
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.
