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 & Alerts
the best aurora forecast app for ios.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
2,861 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 included19 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 & Alerts: 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 customizable alert settings for users.
Assumption to check: Limited customization options for alerts
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more reliable data source for predictions.
Assumption to check: Occasional inaccuracies in aurora predictions
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to download forecasts for offline viewing.
Assumption to check: No offline access to forecasts
Validate with people who use this workflow before building.
Hypothesis 4
Introduce community features like sharing aurora sightings.
Assumption to check: Limited user engagement features
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
the best aurora forecast app for ios. main features include: + interactive aurora forecast map + customizable kp index push notifications + solar wind, density, bz, bt + 30-minute geomagnetic power forecast + 3-day space weather forecast + 27-day space weather forecast + swpc alerts, watches & warnings + short term forecast model graphics + experimental aurora forecast graphics + educational resources -- interactive aurora forecast map -- tap anywhere on the map for a 30-minute, spot specific aurora visibility forecast. this data is customizable and updates every 5 minutes. -- push notifications -- get notified when aurora visibility atmospheric conditions are forecasted to be favorable. alerts can be customized by kp index. currently there are 3 types of push notifications: daily, weeky, and swpc warnings & alerts. -- short term aurora forecast -- + hemispheric power index + ovation prime forecast model graphics + general space weather discussion -- 3-day aurora forecast -- + middle & upper latitude k-index forecast + probability of geomagnetic conditions + solar radiation storm forecast probability + radio blackout activity & forecast + polar cap absorption forecast + whole disk flare probability + region flare probabilities + solar flux -- 27-day aurora forecast -- + forecast highlights discussion + swpc alert details + kp index + ap index + radio flux -- educational resources -- + tips on viewing the aurora + aurora visibility: how far south/north can aurora be observed? terms & conditions https://lwbrandsllc.com/aurora-forecast-app-terms-conditions/
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
expo-location
react-native-maps
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.
