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
Boating Weather
Need to know what the marine forecast is before you go boating or during your boating trip? The Boating Weather App for iPhone and iPod Touch is the answer.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
3,417 ratings · Top 5%
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 included16 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 Boating Weather: map the core Weather 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
Add a feature to suggest nearby locations based on GPS.
Assumption to check: Limited location options for weather data
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the paywall experience with clearer explanations of benefits.
Assumption to check: In-app purchase system can be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Include radar animations for precipitation forecasts.
Assumption to check: Lack of radar features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize notification preferences for alerts.
Assumption to check: Notifications can be overwhelming
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
Need to know what the marine forecast is before you go boating or during your boating trip? The Boating Weather App for iPhone and iPod Touch is the answer. This intuitive app will show you the wind speed, surf and wave height for your coastal zone in the United States. Marine weather data is provided by the National Weather Service (NOAA). Features: - One touch National Weather Service forecast for today, tonight and this week. - Shows wind speed, seas wave height and surf forecast. - Add a location to Favorites for easy reference when switching between zones - Shows small craft advisories. - Set your default location to show your local boat weather forecast. - Simple, intuitive design, quick loading Whether you want to go on a boating trip, out fishing or for a quick sail, the Boating Weather iPhone App will tell you in a snap what the seas are doing! Thank you for choosing our marine weather application. We understand that some users have encountered issues due to recent changes in the NOAA API endpoint. Our team has worked diligently to resolve these issues and has updated the application accordingly. To benefit from these changes, we kindly request that you update or re-install the application. Should you continue to experience difficulties, please don't hesitate to contact us at [email protected]. Our team is committed to assisting you promptly.
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
Axios
React Navigation
Moment.js
Supabase
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.
