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
Landscape Lighting Calculator
Earth Conscious Apps introduces the Landscape Lighting Calculator, easy electrical calculators and tutorials that assist architectural and landscape lighting installers in creating an efficient lighting system at lowe...
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.2
5 ratings · Below Average
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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Combine features and design from your favorite apps.
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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 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 Landscape Lighting Calculator: map the core Utilities 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
Expand functionality to include more lighting scenarios and calculations.
Assumption to check: Limited calculations compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Redesign the UI to make it more modern and user-friendly.
Assumption to check: Interface feels outdated
Validate with people who use this workflow before building.
Hypothesis 3
Implement sharing features to allow users to share results via social media or email.
Assumption to check: No sharing options for results
Validate with people who use this workflow before building.
Hypothesis 4
Improve calculation algorithms for better precision.
Assumption to check: Inconsistent accuracy in calculations
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
Earth Conscious Apps introduces the Landscape Lighting Calculator, easy electrical calculators and tutorials that assist architectural and landscape lighting installers in creating an efficient lighting system at lower installation costs while increasing long-term safety. The calculators are customized specifically for 12V – 24V low voltage electrical systems that are commonly used for LED and halogen outdoor lighting (with a focus on 15V for LED). The calculators are also extremely effective at troubleshooting installation issues! Over eight years of field testing in the landscape lighting industry! Landscape Lighting Calculator includes: Calculator: Minimum Wire Gauge Calculate the Minimum Wire Gauge needed for a run based on: Wattage, Length of Run and Voltage. Calculator: Minimum Transformer Size Calculate the Minimum Size of Transformer that you need for your landscape lighting system, including total watts of the installation. This calculator also verifies each run for wire gauge and length of run. Calculator: Maximum Available Wattage Calculate the Maximum Wattage you can put on a give Gauge Wire, Voltage Tap and Length of Run. This calculator is helpful if you already have a certain gauge wire and want to know how many and what wattage lights can be used on the wire. Calculator: Maximum Distance Calculate how far you can go with a given Wire Gauge, Voltage Tap and Wattage. This calculator is also helpful if you already have a certain gauge wire and want to know how far you can go with a given wattage and voltage. Tutorial: How to Use How to use each calculator to get the best results. Tutorial: Getting Started Step by step guide to creating an organized lighting plan, including: where to locate the transformer, how to group lights for efficiency, and tips on how to future proof your landscape lighting system. Tutorial: Wiring Basics In this tutorial you will learn wiring and connection basics, how to look up National Electrical Code installation requirements, and where to get more detailed information if you are curious. Tutorial: VA vs W (Volt-Amperes vs Watts) Learn the difference between VA (Volt-Amperes) and W (Watts) and how to use these correctly in the calculators.
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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 Navigation
Expo Clipboard
React Native Picker Select
Expo Secure Store
React Native Vector Icons
Zustand
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.
