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
MyBagCaddie
MyBagCaddie is your personal club-selection caddie — built around your actual yardages, not generic averages.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included15 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 MyBagCaddie: 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
Provide a guided tutorial or tips for new users.
Assumption to check: Poor user onboarding process
Validate with people who use this workflow before building.
Hypothesis 2
Add detailed stats and analytics for users' equipment usage.
Assumption to check: Limited equipment tracking features
Validate with people who use this workflow before building.
Hypothesis 3
Integrate social sharing and community challenges to enhance user engagement.
Assumption to check: Lack of community features
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
MyBagCaddie is your personal club-selection caddie — built around your actual yardages, not generic averages. Every golfer's swing is different. Generic yardage charts use averages that may not match how far YOU actually hit each club. MyBagCaddie starts with the distances you enter for your own bag, then factors in real-time weather conditions and your location on the course to recommend the right club for the shot in front of you. HOW IT WORKS - Enter your personal yardages for each club in your bag - Select current weather conditions - Get a club recommendation built around your numbers, not a stranger's average WHY MYBAGCADDIE - Personal, not generic — every recommendation is based on YOUR distances - Weather-aware — wind and temperature can shift a club selection by a full club or more - One-time purchase — $2.99, no subscription, no ads, ever - Simple and fast — built for a quick check between shots, not a complicated analytics dashboard MyBagCaddie isn't trying to be a GPS shot-tracker or a full course-mapping app. It's a focused tool that answers one question fast: which club should I hit right now? Built for golfers who want a smarter caddie in their pocket — without subscriptions, ads, or unnecessary complexity.
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
Zustand
Axios
@react-navigation/native
Firebase
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.
