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
Whitefish Ski
Whitefish Ski Navigator – Real Audio Navigation when skiing with you iPhone, Watch and AirPods/EarPods
$3.99 · In-app purchases
PRICE
$3.99
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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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 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 Whitefish Ski: 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
Integrate social sharing options for users to share their experiences.
Assumption to check: Lack of user engagement features like social sharing
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize their profile and preferences.
Assumption to check: Limited personalization options for user profiles
Validate with people who use this workflow before building.
Hypothesis 3
Implement offline caching for trail maps and weather data.
Assumption to check: No offline access to trail maps or weather data
Validate with people who use this workflow before building.
Hypothesis 4
Add push notifications for weather changes and upcoming events.
Assumption to check: Inadequate notifications for weather updates or events
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
Whitefish Ski Navigator – Real Audio Navigation when skiing with you iPhone, Watch and AirPods/EarPods. Ski with confidence and never worry about ending up on an expert-only trail again! Explore with confidence using detailed trail maps of Whitefish: - Effortless Navigation – Find the best open trails for your skill level, from gentle green runs to expert-only double blacks. - Hands-Free Guidance – Get audio navigation via AirPods, Apple Watch, or iPhone, so you can focus on carving the perfect turns. - Performance Tracking – Monitor your top speed, average speed, heart rate, and run times, all synced with Apple Watch and iPhone. - Quick-Call Rescue Button – Stay safe with instant access to ski patrol in case of emergencies. - Live Weather Updates – Plan your day with real-time forecasts and mountain conditions. - Find Everything You Need – Locate restaurants, ski schools, rental shops, hotels, and more—all mapped with ski-trail directions! - Friend Location Sharing: See where your friends are on the slopes — and navigate right to them. - Favorite Spots: Mark your hotel, parking, or any key location — and navigate to it anytime. No matter your skill level, stay connected to the mountain and capture every thrilling moment. The Whitefish Ski Navigator is your key to a smooth, safe, and exciting ski adventure. Download Whitefish Ski app now and conquer Whitefish Ski Resort like a pro! Note: This app provides hands-free trail navigation with voice prompts for Apple Watch, AirPods/EarPods, and iPhone. Using Apple Watch workout mode (integrated with HealthKit for heart-rate tracking), it delivers real-time guidance and skiing stats. GPS usage in the background may reduce battery life.
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
React Navigation
Axios
React Native Maps
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.
