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
Hanalei
This app was crafted with aloha to help navigate travel to and from Hanalei with ease using real-time and historical data, all in one place.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
128 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.
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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 included13 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 Hanalei: 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
Allow users to customize alert types and thresholds.
Assumption to check: Limited customization options for notifications.
Validate with people who use this workflow before building.
Hypothesis 2
Integrate multiple weather data sources for improved accuracy.
Assumption to check: Inconsistent data accuracy in hourly forecasts.
Validate with people who use this workflow before building.
Hypothesis 3
Implement offline caching for saved city weather data.
Assumption to check: Lack of offline access to saved locations.
Validate with people who use this workflow before building.
Hypothesis 4
Develop home screen widgets for quick weather updates.
Assumption to check: No widget support for quick access.
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
This app was crafted with aloha to help navigate travel to and from Hanalei with ease using real-time and historical data, all in one place. - Hanalei and North Shore River Gauge Monitoring: Stay updated with real-time river level information for safe travel and hiking. - Weather Forecast: Obtain timely forecast from the National Weather Service to ensure safe and informed travel planning. - Weather Advisories: Receive immediate National Weather Service updates to plan your journey accordingly. - Water Quality Advisories: Get real-time updates on water quality to ensure safe swimming, surfing, paddling and other water activities. - Kauai Road Work Information: Get the latest updates on road conditions and construction work to avoid delays. - Hanalei Bay: Up-to-date tidal predictions for Hanalei Bay to plan your visits or activities with the tides in mind. - Hanalei Bay Beach and Surf Conditions: Real-time wave height, wind, and surf forecasts, along with water/air temperature, humidity, UV index, and sunrise/sunset times. - Essential Contacts: Easy access to important phone numbers for assistance and inquiries. - Real-Time and Historical Data: Comprehensive insights combining current data and historical trends for informed decision-making. - DNLR Updates: Receive real-time DNLR State Park updates on park closures, permits, and conservation efforts for safe Kauai planning. - Locals Tab: Explore Kaua‘i’s North Shore with the Locals tab, showcasing local eats, nonprofits, cultural events, and outdoor adventures. - App and Widget support.
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
MapView
Redux
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.
