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
ClubUp Caddies
ClubUp Caddies is the go-to app for professional and aspiring caddies
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.0
4 ratings · Top 30%
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 ClubUp Caddies: map the core Productivity 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 caching for offline access.
Assumption to check: Limited offline capabilities
Validate with people who use this workflow before building.
Hypothesis 2
Add filters and search functionality.
Assumption to check: Difficult to navigate the caddy list
Validate with people who use this workflow before building.
Hypothesis 3
Enable user preferences for notifications and display.
Assumption to check: Lack of user customization options
Validate with people who use this workflow before building.
Hypothesis 4
Improve sync reliability and options.
Assumption to check: Inconsistent syncing with calendar
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
ClubUp Caddies is the go-to app for professional and aspiring caddies. Browse available loops at your club, claim rounds instantly, and manage your entire caddying schedule from the palm of your hand. Find Work Fast See unclaimed loops in real time. Get notified the moment new rounds become available. Accept bench requests and preferred invitations from clubs that know and trust your skills. Own Your Schedule Set your weekly availability down to the day and time slot. Morning rounds, afternoon loops, or full 36-hole days — you decide when you work. Get Paid Your Way Choose cash, Venmo, or direct bank deposit through ClubUp Pay. Track recommended payments and view your complete earnings history after every round. Stay Connected Message your club directly in the app. Receive push notifications for new loops, cancellations, and bench requests so you never miss an opportunity. Build Your Reputation Create a caddie profile with your bio, photo, and experience. Track your completed loops, ratings, and stats to stand out as a preferred caddie.
Written user reviews are not shown here. Check current App Store reviews >
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
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zustand
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expo-router
BUILD KIT DIFFICULTY
Expert
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.
