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
Putt Break
Know your green before you putt.
$4.99 · In-app purchases
PRICE
$4.99
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.
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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 included15 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 Putt Break: 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 more visual stats and graphs to enhance user understanding.
Assumption to check: Users often find difficulty in tracking their progress effectively.
Validate with people who use this workflow before building.
Hypothesis 2
Add a feature to create and share custom drills.
Assumption to check: Limited practice drills available.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the subscription process with clearer explanations.
Assumption to check: Subscription options can be confusing.
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a social component where users can share achievements.
Assumption to check: Lack of community engagement 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
Know your green before you putt. Putt Break uses the LiDAR sensor on iPhone Pro to measure the slope of the putting green directly under your feet — in real time, with no setup required. What it does Stand over your ball. The app reads the slope percentage, which way it breaks, and whether you're putting uphill or downhill. Switch to Distance mode to measure the exact length of your putt from where you stand to the hole. Built for learning Putt Break is a measurement tool, not an aiming system. It tells you what the green is doing. You decide how to play it. That honesty is the point. Features Real-time slope reading with side break and uphill/downhill Distance mode: measure putt length from stance to hole Confidence indicator so you know when the reading is trustworthy Save readings as photos with a branded overlay Works in shade, overcast, and most outdoor conditions Requirements iPhone 12 Pro or newer (LiDAR required). iPhone 15 Pro / Pro Max recommended for best accuracy. For practice only Electronic slope measurement is prohibited during tournament play under Rule 4.3a. Putt Break is designed for practice rounds, learning sessions, and casual play.
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 Navigation
Supabase
Victory Native
React Native Reanimated
Expo
Zustand
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.
