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.
The #1 fantasy platform, globally for contests, community predictions, parlays, brand prizes, fan experiences, trivia and rewards for Sports, Pop Culture, Reality TV, and Live Events.
Free · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for FanUp - Daily Fantasy Sports: 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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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
Assumption to check: Limited variety of contests and prizes
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface can be cluttered
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent performance tracking
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited social features
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
The #1 fantasy platform, globally for contests, community predictions, parlays, brand prizes, fan experiences, trivia and rewards for Sports, Pop Culture, Reality TV, and Live Events. Enter our $1M World Cup Bracket Contest for free! Win your share of awesome prizes from our sponsor partners StubHub, Puma, Adidas, and Nike. Make predictions on Love Island Season 8 U.S.A., Love is Blind, Ex on the Beach, and win incredible prizes including Chanel, Nike, Alo, Lululemon,Sephora gift cards for free. Enter our Daily NBA Playoffs, and MLB Contests. The very best way to play fantasy basketball, with daily $100k prize contests, including courtside tickets to your fav teams games, jerseys, Nike, Lulu, Alo gift cards, and autographed rookie cards. Entry fees are $10. Simply pick your 4 fav. players. No drafts. No salary caps. No luck of best ball. No injuries. No waivers. Select 1 G, 1 F, 1 C, and 1 Flex player (G, F, or Center) that receives 1.5x the points. New for the 2026 season, enter the contest with a group of friends. Make predictions on games. FanUp is the next generation of fantasy sports and pop culture, with risk free, points based and real-money contests, peer-to-peer features, and a highly engaged social community, that rewards our fanbase with the coolest brand prizes. FanUp is the #1 globally connected fandom and fantasy platform for Gen-Z, women and casual fans. We have the very best content, contests and parlays for Pop Culture (Love Island, The Bachelor), NFL, NBA, MLB, F1, esports, Cricket, PFL, FIBA, and Soccer Champions Tour. We customize your experience based on the data you share, and you can win awesome cash prizes, VIP game tickets, authentic jerseys, Louis Vuitton purses, Revolve, Nike and Adidas gift cards, entries into card breaks, and meet and greets with your favorite athletes, and entertainers! We now have the largest Over/Under Parlay payout in the industry, with 30x payout on 6 pick parlays! FanUp is 24/7 gaming with your friends and rival fans, making every sports, and pop culture show event more fun, with giveaways, cash prizes, the coolest content, and the hottest brands. Our core squad are: 18-24 year-olds (89% of our players), women (58% of our players) and social fans. Our Flex Contests get the crowd hype, letting you compete, talk trash (GIF’em what you got), team up in Groups, and win big, with the best community for every type of fan. Flex Ball combines the best of re-draft and best-ball. Whether you’re an expert or just love the game, it's super easy, fun, quick, and there's no salaries, leagues, waivers, or drafts – so you can Just be fans. Enjoy sports the way they're meant to be, with fun, easy and visual content that blends pop-culture and sports for your favorite teams, players, brands and influencers. It's all about you, your squad, and our community. We have the sauce for every fan; whether you keep it casual, or you're hardcore. We've got you covered with our super fun and easy gameplay; Flex Contests (with no salary caps) for the NFL, NBA, esports, The Bachelor, and Cricket, and Squares March Madness, Pick 6, Challenges and Group Play (squad up with your friends). Sports are a social experience, and so is FanUp. Check out our feed and view others' picks, talk trash with the best of them, and .GIF'em what you got. Build your brand meng. Stack chips for every like, comment, share, and invite. Grow your fanbase with our immersive player profiles and user generated content. Enjoy the #1 Fan Community for sports and esports fans in the World. FanUp. Where every fan wins. Why you will love FanUp: • We're a community. Not a deserted island. • We always compete. In groups, with rivals, and with ourselves. • We level the play. Winning isn't impossible. It's the norm. • Experience the euphoria of the Super Bowl every day, with your fav influencers & brands.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.