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.
Tour players don't guess at rulings
$19.99 · 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 The Rules Official: 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: Inadequate content depth for some sports rules
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficult navigation between related rules
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchasing can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of community 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.
Tour players don't guess at rulings. They call an official. Now you have one in your pocket. The Rules Official gives you instant, accurate golf rulings on the course, no signal required. Guided decision trees walk you through the exact ruling step by step, the same way a trained rules official would diagnose the situation in person. Privacy Policy: https://therulesofficial.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdendeula/ TAP. ANSWER. PLAY. Select your situation. Answer a few targeted questions. Get the correct ruling with the official rule citation. Share it with your group in one tap. BUILT LIKE A REAL RULES OFFICIAL. The Rules of Golf are complex because they have to be. Real rules officials simplify that complexity by asking the right questions in the right order. The Rules Official works exactly the same way, covering the scenarios golfers actually face on the course. ON-DEVICE AI. On supported devices, describe your situation in plain language and get an instant ruling powered by Apple Intelligence. All AI processing runs on your phone, nothing is sent to a server. WORKS ANYWHERE. EVEN OFFLINE. Golf courses don't always have signal. Every feature runs entirely on your device, so rulings are always available, in the rough, on a cart path, or deep in the trees. EVERY TOOL YOU NEED. • Guided decision trees for the situations you actually face • Official rule citations with every ruling • Step-by-step relief procedures with penalties explained • Stroke Play and Match Play modes, rulings adapt to your format • Share any ruling with your group in one tap • High-contrast design built for sunlight, gloves, and one-handed use YOUR DATA STAYS YOURS. No accounts. No analytics. No tracking. No data collection of any kind. Everything runs on your device and stays on your device. $19.99 per year, less than a sleeve of premium balls, and worth it the first time a ruling goes your way. Start with a 7-day free trial. Know the rule. Play the shot. The Rules Official is not affiliated with the USGA or R&A. All content is original plain-language interpretation of the Rules of Golf.
Written user reviews are not shown here. Check current App Store reviews >
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.