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
The Paddock App 3.0
The Paddock 3.0: Master Your Bowling Motion
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.1
16 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 included14 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 The Paddock App 3.0: 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
Allow users to customize colors and shapes of paddock elements.
Assumption to check: Limited customization options for paddock elements
Validate with people who use this workflow before building.
Hypothesis 2
Implement a share feature that generates a link or image of the layout.
Assumption to check: Difficult to share layouts with others
Validate with people who use this workflow before building.
Hypothesis 3
Add undo/redo support for layout editing.
Assumption to check: No undo/redo functionality
Validate with people who use this workflow before building.
Hypothesis 4
Include onboarding tutorials or tips for first-time users.
Assumption to check: Can be unintuitive for new users
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
The Paddock 3.0: Master Your Bowling Motion Professional Dual Angle Layouts Driven by Physics Stop guessing and start striking. The Paddock App 3.0 is the most advanced bowling layout engine ever built for mobile. Developed using the "Dual Angle Layout" logic, this tool translates your unique physical release—Speed, Rev Rate, Tilt, and Rotation—into mathematically optimized Dual Angle layouts (DA x PD x VA). Why it works: The Paddock doesn't just give you numbers; it understands the "why." By analyzing your LS(Launch Speed):RPM Balance, the app calculates the perfect Transition Speed (Sum) and Motion Shape (Ratio) to match your game to the lane conditions. Whether you are a Speed-Dominant "Stroker" or a Rev-Dominant "Cranker," The Paddock tunes your equipment for maximum "miss room" and pin carry. Key Features: * 9 Release Profile Matrix: Custom logic for every combination of Axis Tilt and Rotation. * Core-Specific Tuning: Differentiated Pin-to-PAP (PD) logic for Symmetrical and Asymmetrical cores. * Precision Timing: Our "Sum" logic determines exactly when your ball reads the midlane. * Geometric Shaping: Use our "Ratio" engine to design the perfect backend shape. * Surface Strategy: Built-in Benchmark grit recommendations based on your Bowler DNA. * Motion Shape Geometry: Let the app solve the DA : VA ratio for you. Version 3.0 provides 2 benchmark layouts, for a Symmetrical Core and Asymmetrical Core, and 20 more Dual * Angle Layouts characterized by flare amount, how fast axis rotation is lost, and how soon the ball rolls forward. All of the layouts are based on your Bowler DNA. * The Analyze Layout "Why This Works" Summary: Every layout includes a plain-English breakdown of how the ball will behave on the lane. Engineered for Accuracy: From "Short Pin" asymmetrical control layouts to high-leverage symmetrical benchmarks, The Paddock 3.0 uses the latest in bowling sports science to give you a competitive edge. The Goal of The Paddock App 3.0: To provide you with dual angle layouts, specific to your Bowler DNA, for every ball in your bag and the confidence to play on any lane condition in the world.
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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
@react-native-async-storage/async-storage
React Native Reanimated
Expo Gesture Handler
BUILD KIT DIFFICULTY
Starter
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.
