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.
SwingU is the top-rated golf GPS rangefinder and scorecard app, trusted by more than 8 million golfers worldwide to play smarter, shoot lower scores, and get more out of every round
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 SwingU Golf GPS by Golf Genius: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
SwingU is the top-rated golf GPS rangefinder and scorecard app, trusted by more than 8 million golfers worldwide to play smarter, shoot lower scores, and get more out of every round. Rated 4.7 stars from 131,000+ reviews. GPS, scoring, and handicap tracking are always free, no subscription required. Upgrade when you're ready — it's always your call. WHAT DO I GET FOR FREE • GPS rangefinder that works on every course in the world, with distances to greens and hazards • Digital scorecard that tracks score and putts and auto-advances hole to hole • Golf Genius tournaments, live leaderboards, and scoring • Free handicap estimate after posting just 9 holes • Shot tracking that shows how far you really hit each club • Tap the flag on any hole for distances to 5+ tiers of the green • A daily instruction tip from our team of Top-100 teachers • Apple Watch app: distances and scoring for you and your group • HealthKit support on the Watch, including calories burned The only golfer community-verified course database in the world — 34,000+ courses and growing. CAN I PLAY REAL TOURNAMENTS IN SWINGU Yes. SwingU is part of the Golf Genius family, the tournament management platform used by thousands of clubs, courses, and golf associations worldwide. Golfers can join a Golf Genius event, post scores from the SwingU scorecard, and follow live leaderboards without leaving the app. WHAT IS SWINGU PLUS SwingU Plus is our AI-powered digital caddie subscription. It adds: • AI Digital Caddie with "Plays Like" yardages using live wind speed and elevation • Club recommendations based on your club distances, shot tracking, and conditions • StrackaLine Green Maps for 20,000+ courses — precise slopes and break lines on laser-mapped greens • Hole Insights — your hole stats vs. all SwingU golfers for strategic decision making • Hole notes you can reference the next time you play • Enhanced scorecard — putts, driver accuracy, bunker play, penalties, and detailed round summaries • On-the-course games with handicap-adjusted scoring: Stroke Play, Skins, Stableford, Match Play, and Nassau WHAT IS SWINGU PRO SwingU Pro is our elite game-improvement subscription, and includes everything in Plus: • SwingU strokes gained — the world's easiest-to-use strokes gained platform, used by 50+ active tour players and 100+ college golfers • Performance comparison vs. your target handicap (from +6 to 30) • Relative handicap for every facet: driving, approach, short game, bunker play, and putting • Post-round #1 improvement priority, plus a prescriptive drill from a Top-100 teacher • SwingU TV — 600+ lessons and drills from Top-100 teachers, anytime WHY DO MILLIONS OF GOLFERS USE SWINGU • Reliable and easy to use — one tap and you're playing • Helping golfers improve since 2008 • The only golfer community-verified course database in the world • Backed by Golf Genius, the technology behind competitive golf at thousands of clubs === OTHER INFO Monthly and yearly subscription upgrades are available. Payment for in-app subscriptions will be charged to your iTunes Account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Account will be charged for renewal within 24 hours prior to the end of the current period. Subscriptions may be managed by you, and auto-renewal may be turned off by going to your iTunes Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. As a registered user, you'll be subscribed to the world's top golf daily newsletter which includes promotions from our partners. You can 1-click unsubscribe at any time. Despite years of optimizing the app, constant use of GPS running in the background can decrease battery life. Full terms and the EULA are available at: • swingu.com/terms-of-service/ • clubhouse.swingu.com/eula/
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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 GPS accuracy in some areas
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: In-app purchase features can be unclear
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Occasional crashes during heavy data use
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface can be cluttered
Validate with people who use this workflow before building.
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.