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
GolfLogix: 3D Golf GPS
STOP GUESSING
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
110,483 ratings · Top 15%
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 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.
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 GolfLogix: 3D Golf GPS: 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
Implement improved GPS tracking with real-time updates.
Assumption to check: Users find GPS accuracy to be inconsistent.
Validate with people who use this workflow before building.
Hypothesis 2
Expand database with user-generated courses.
Assumption to check: Limited course data available.
Validate with people who use this workflow before building.
Hypothesis 3
Create a clearer paywall and subscription explanation.
Assumption to check: In-app purchases can be confusing.
Validate with people who use this workflow before building.
Hypothesis 4
Enhance app stability through better error handling and testing.
Assumption to check: Users report occasional app crashes.
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
STOP GUESSING. START SCORING. DOWNLOAD FREE TODAY! SEE THE COURSE OTHERS CAN'T Most golfers play blind. GolfLogix gives you a complete 3D view of every hole — elevation changes, landing zones, green slopes — so you always know exactly what's in front of you before you pull a club. HIT THE RIGHT CLUB, EVERY TIME No more second-guessing your yardage. Get precise GPS distances adjusted for slope, personalized club recommendations, and shot tracking that gets smarter the more you play. PLAN YOUR WAY TO LOWER SCORES See your shot before you hit it. 3D flyovers and personal club distances let you map out the ideal line from tee to green — so you walk up to every shot with a plan, not a guess. ATTACK THE GREEN WITH CONFIDENCE Know exactly where to land your approach. Color-coded heat maps reveal green slopes and speeds so you set up in the right spot — and give yourself a real chance to make the putt. DRAIN MORE PUTTS Read every green like a tour caddie. See the exact break, know where to aim, and step over every putt with confidence instead of hope. YOUR CADDIE ON YOUR WRIST With Apple Watch support, your distances, hole layouts, and green reads are always one glance away — so you stay in the zone and never lose your rhythm between shots. TRACK IT. IMPROVE IT. SHOOT LOWER. Pro-level stat tracking shows exactly where your game is winning and where it's costing you strokes. Keep score for up to 4 players and watch your game improve round by round. GOLFLOGIX APP FEATURES: - 3D virtual hole previews & flyovers - Slope-adjusted GPS distances - Color-coded green heat maps & putt break reads - Personalized club recommendations - Shot tracking & pro-level stat tracking - Scorecard for up to 4 players - Apple Watch support - 40,000+ courses worldwide DOWNLOAD GOLFLOGIX FREE — SEE THE DIFFERENCE ON YOUR VERY FIRST ROUND. PAYMENT INFORMATION GolfLogix is free to download with a Premium Membership available in Weekly, Monthly, and Annual plans. Try all Premium features free on your first 9 holes. Subscriptions are billed to your iTunes account and automatically renew unless cancelled at least 24 hours before the end of the current period. Manage your subscription in iTunes Account Settings. For full terms and privacy policy, visit golflogix.com/Terms_of_Use.aspx.
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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
Zustand
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react-native-maps
BUILD KIT DIFFICULTY
Advanced
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.
