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 Tromsø
Aurora forecasting made simple
$2.99 · In-app purchases
PRICE
$2.99
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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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/
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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 Tromsø: map the core Travel 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
Provide detailed forecasts with tips for best viewing times.
Assumption to check: Limited information on Northern Lights forecasting
Validate with people who use this workflow before building.
Hypothesis 2
Implement a robust two-way review system for users to rate their experiences.
Assumption to check: Inadequate user reviews and feedback system
Validate with people who use this workflow before building.
Hypothesis 3
Use user data to suggest personalized trips based on preferences and past activity.
Assumption to check: Lack of personalized trip recommendations
Validate with people who use this workflow before building.
Hypothesis 4
Clarify subscription benefits and offer a free trial to attract users.
Assumption to check: Subscription model without clear value
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
Aurora forecasting made simple Know when it’s worth stepping outside with a clear Aurora Visibility score that combines key factors like KP index and cloud cover. Check the hourly aurora activity forecast, view 5-day trends, and use the cloud coverage view to spot the clearest skies nearby. Forecast features: Aurora Visibility score at a glance KP index and cloud cover tracking Hourly aurora activity forecast 5-day aurora forecast overview Cloud coverage map with an easy legend Quick refresh + location selection Get alerts when the sky is promising Turn on Aurora Alerts and set your own threshold, so you’re notified when conditions improve. Be ready for the night Aurora hunting often means cold, wind, and long waits. Aurora Tromsø helps you plan with current weather, wind, visibility, and a “Conditions Tonight” view (including wind chill), plus a cold-weather clothing checklist to help you pack smart. Built-in Tromsø guide Explore Tromsø beyond the lights with a local guide covering practical and useful categories, including: Mandatory / essential info for your stay Car rental tips Restaurants Supermarkets and shopping basics “What is local” – authentic Tromsø experiences and traditions Note: Aurora forecasts are estimates and depend on factors like cloud cover, solar activity, and local light pollution.
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 Paper
Axios
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.
