App Overview

Expert Golf – iGolfrules icon

Expert Golf – iGolfrules

Golf Rules Made Easy · Sports

▸ GOLF DIGEST wrote: “Image rulings in 3-D on every possible on-course conundrum.”

$19.99 · In-app purchases

PRICE
$19.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
2.5
32 ratings · Below Average

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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What's included17 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.

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.

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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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Expert Golf – iGolfrules: 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

Incorporate quizzes and interactive content to engage users.

Assumption to check: Limited user engagement and interactivity.

Validate with people who use this workflow before building.

Hypothesis 2

Implement a more robust search and filter system.

Assumption to check: Poor navigation and search functionality.

Validate with people who use this workflow before building.

Hypothesis 3

Add user forums or discussion boards for community engagement.

Assumption to check: Lack of community features.

Validate with people who use this workflow before building.

Hypothesis 4

Introduce subscription options for more flexible payment.

Assumption to check: High cost for a single purchase.

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

▸ GOLF DIGEST wrote: “Image rulings in 3-D on every possible on-course conundrum.” ▸ WALL STREET JOURNAL wrote: “An essential resource for solving any in-game confusion.” ▸ GOLF MAGAZINE wrote: “Simply choose where your ball lies and the object you want relief from, and iGolfrules instantly directs you to the correct ruling.” ▸ OFFICIALLY recommended by Apple; one of the world’s most popular sport apps (in the App Store top ten continually for many years). iGolfrules by Expert Golf provides the answers to your rules questions in a matter of seconds. You have a virtual referee constantly at your side who helps you to use the golf rules to your benefit and utilize all the relief procedures available. Why Expert Golf is better ▸ User-friendly and intuitive operation (a manual is superfluous). ▸ You find the right solution with a maximum of 3 clicks. ▸ More than 200 graphics, animated illustrations and videos. ▸ Focuses on practical situations and is easy-to-understand. ▸ Contains the rules for stroke play and match play. ▸ An interactive help tool tells you instantly whether you are entitled to free relief. ▸ Excellent customer ratings and top rankings in the App Store. ▸ Leading app for many years and improved with regular updates. The application is based on “Golf Rules Quick Reference”, a multi-award winning international bestseller, which has been translated into over 20 languages and has sold more than 2.5 million copies. Conforms to USGA/ R&A rules valid as of 2023 (including free updates until the next rules revision). If you are happy with our app we would be grateful if you would take a moment of your time to post a rating/ write a review in the App Store. If, for whatever reason, you are not happy with the app or have any questions about it please contact our support team at [email protected].

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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
@react-navigation/native
axios
react-query
expo-sharing
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.