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
My Aurora Forecast Pro
My Aurora Forecast Pro is the best app for seeing the Northern Lights
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
2,914 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 My Aurora Forecast Pro: 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
Provide more granular data such as real-time satellite images.
Assumption to check: Limited forecast details compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement user feedback mechanisms to improve accuracy.
Assumption to check: Occasional inaccuracies in alerts
Validate with people who use this workflow before building.
Hypothesis 3
Add options for users to share forecasts on social media.
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Simplify subscription options and provide clear value propositions.
Assumption to check: Subscription model can be confusing
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
My Aurora Forecast Pro is the best app for seeing the Northern Lights. Built with a sleek dark design, it appeals to both tourists and serious aurora watchers by telling you what you want to know - whether that is exactly how likely you are to see the aurora borealis or details about the solar winds and high-resolution sun imagery. With this app, you'll be seeing the Northern Lights in no time. - Find the current KP index and how likely you are to see the Northern Lights. - View a list of the best locations to view from right now. - Map showing how strong the aurora is around the world, based on the SWPC ovation auroral forecast. - Push notifications when auroral activity is expected to be high. - Forecasts for the next hour, several hours and several weeks so you can plan your Northern Lights viewing long in advance (subject to weather conditions). - Solar wind statistics and sun imagery. - View live aurora webcams from around the world. - Tour information so if you're considering to go to locations such as Iceland, Sweden, Finland or even Alaska or Canada, you'll be able to find tours that we can recommend to you. - Support for the latest iPhone and iPad models. - Pro version is ad-free and includes Apple Watch support! If you want the latest updates on geomagnetic activity and enjoy viewing the aurora borealis, this app is right for you. It is similar to other apps such as Aurora Forecast., SpaceWeatherLive and hello aurora.
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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
expo-location
react-native-maps
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.
