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
FantasyPros - Fantasy Advice
From your first draft pick to championship week, dominate every moment of your fantasy football and fantasy baseball season with the FantasyPros app.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
90,652 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 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 FantasyPros - Fantasy Advice: 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
From your first draft pick to championship week, dominate every moment of your fantasy football and fantasy baseball season with the FantasyPros app. My Playbook and Draft Wizard® unite in one seamless app, giving you expert fantasy advice the instant you need it. WHY YOU’LL WIN Full Season Edge Draft your team and optimize your lineup every single week with custom advice from the most accurate fantasy experts. All Your Leagues - All In One Place Sync your leagues from over 15 hosts* and conveniently manage them all from a single app. Award Winning Tools Draft like a pro, set winning lineups, crush the waiver wire, and negotiate trades with tools trusted by millions. Accurate Player Rankings Dynasty, draft, season and weekly advice powered by 100+ experts in our Expert Consensus Rankings (ECR). Quick Access to Stats & Projections Timely research and reports for every player, in one convenient spot. Breaking News and Alerts Stay on top of the latest NFL and MLB player news and get instant notifications for your players. * League sync supports Yahoo, Sleeper, ESPN, CBS Sports, NFL.com, MyFantasyLeague, RT Sports, FleaFlicker, Fantrax, NFC, FFPC, FFWC, FanStar, DataForceFF, Reality Sports Online, and LeagueTycoon. Introducing Coach AI Your own personal fantasy assistant and expert who knows your league and team better than you do. MY PLAYBOOK FEATURES - Start/Sit Assistant: See what your optimal lineup is each week based on the most accurate experts. - Waiver Assistant: Find top suggested players to add and drop with in-depth analysis. - Trade Assistant: Analyze suggested and offered trades for smarter trade decisions. - League Analyzer: See how your team stacks up against your league. - Who Should I Start?: Easily compare players side-by-side for smart lineup decisions. - Game Day: Real-time fantasy football feed, leaderboard, and league matchups with live fantasy scoring for your teams. - Scores & Plays: Live NFL scoreboard, play-by-play, team and player stats, betting odds, and more. DRAFT WIZARD FEATURES - Mock Draft Simulator™: Fast and realistic mock draft simulations and draft grades based on your league settings. - Expert Suggestions: See who the experts would draft for every single pick. - Cheat Sheets: Create custom draft cheat sheets based on expert rankings and ADP. - Draft Assistant: Sync with your live draft to get real-time pick suggestions for every round * - Custom Drafts: Configure league settings, scoring (Standard, Half PPR, PPR), teams, positions and more. - Keeper Leagues: Track keepers for each team so you can mock draft with settings that are close to the real thing. * Draft Assistant Notes: 1. Draft Assistant supports the following league hosts: Yahoo, Sleeper, CBS, NFL.com, MyFantasyLeague, RT Sports, Fantrax, and NFFC. 2. ESPN leagues can be imported into the app, but only the Manual Draft Assistant is supported. Use our browser extensions on web for ESPN live sync support. 3. Salary Cap Draft Assistant is not available in the app. ---------- Industry Awards include: Best Service/Tool, Most Accurate Projections, Most Innovative Product, and more. Upgrade to FantasyPros Premium and unlock powerful draft and in-season features for all sports. Subscriptions auto-renew; manage anytime in Settings. Privacy Policy: https://www.fantasypros.com/about/privacy/ Terms of Use: https://www.fantasypros.com/about/legal/ Have feedback or need help? https://support.fantasypros.com Follow us for ongoing fantasy football advice, articles, podcasts, and more: - X: https://www.twitter.com/fantasypros - Instagram: https://www.instagram.com/fantasypros/ - TikTok: https://www.tiktok.com/@fantasypros - YouTube: https://www.youtube.com/fantasypros
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 better ad management system or offer an ad-free premium version.
Assumption to check: Users find too many ads intrusive.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the navigation flow and improve tab organization.
Assumption to check: Difficulty in navigation between sections.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance real-time data fetching to keep stats up-to-date.
Assumption to check: Slow updates on player stats.
Validate with people who use this workflow before building.
Hypothesis 4
Provide more customization features for users to personalize their teams.
Assumption to check: Limited customization options for teams.
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
Axios
React Navigation
React Native Reanimated
BUILD KIT DIFFICULTY
Starter
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.
