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
Aurora Forecast - Borealis Map
Spot Northern Lights easily with Aurora Forecast App
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
116 ratings · Top 15%
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 included18 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 Aurora Forecast - Borealis Map: 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 set specific times for alerts based on activity levels.
Assumption to check: Limited alert customization options
Validate with people who use this workflow before building.
Hypothesis 2
Improve location accuracy with better geolocation integration.
Assumption to check: Inaccurate location services
Validate with people who use this workflow before building.
Hypothesis 3
Add options for users to share alerts and forecasts on social media.
Assumption to check: Lack of social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Include features to analyze past aurora activity trends.
Assumption to check: No historical data analysis
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
Spot Northern Lights easily with Aurora Forecast App. This app gives you everything you need to know. When, where, and how likely you are to see the aurora, wherever you are in the world. Whether you’re chasing the aurora in Iceland, hoping for a rare display in your hometown, or planning a photography trip to the Arctic Circle, this app keeps you fully prepared with accurate, real-time forecasts and smart alerts. - Real-time aurora forecasts tailored to your location - Live KP index, cloud cover, and visibility data - Solar wind stats ands more - Customizable alerts when aurora activity is expected near you - Forecasts for the future - Global aurora map - Aurora viewing tips and best current locations - Simple, sleek design Built for travelers, photographers, and anyone who doesn’t want to miss the next aurora, this app helps you stay one step ahead and catch the magic when it happens. Privacy Policy: https://docs.google.com/document/d/1CYJ_YEK2fZHzfMJntkommHBqIdkYoGnQ2lnCUt52C88/ Terms of Use: https://docs.google.com/document/d/1MvMhZJsr14RA3JatJtIHj-GpTCITxJ1a7NMfelop3wk/
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
Supabase
react-navigation
react-native-maps
@react-native-community/slider
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.
