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
AuroraReach
AuroraReach app is an aurora tracking, forecasting and alerting app that gives local aurora visibility scores for cities around the world
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
99 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'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 AuroraReach: 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 custom alert thresholds and notifications.
Assumption to check: Limited customization for alerts
Validate with people who use this workflow before building.
Hypothesis 2
Integrate with multiple weather APIs for more reliable data.
Assumption to check: Inaccurate weather predictions
Validate with people who use this workflow before building.
Hypothesis 3
Offer an ad-free subscription tier for better user experience.
Assumption to check: Too many ads
Validate with people who use this workflow before building.
Hypothesis 4
Implement offline caching for saved locations and forecasts.
Assumption to check: Lack of offline functionality
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
AuroraReach app is an aurora tracking, forecasting and alerting app that gives local aurora visibility scores for cities around the world. We take weather conditions like cloud cover, visibility, time of day etc. along with aurora score to generate a score that can help you find the aurora visibility times for a gives city. Along with aurora, weather conditions are also predicted for up to 4 days. We also let users checkin an aurora sighting and alert based on that. We track ~24K cities around the world for aurora activity and weather conditions. It is easy to get started by subscribing to alerts for multiple cities and get alerted on the app for free. Realtime aurora map shows the aurora activity on the map and you can interact with the map to select the cities we are tracking from map and having activity at that time. Aurora Travel destination searching is easier with this and with our city search page you can search by city or country for viewing the city aurora forecast report and subscribe to cities for alerts. You can favorite the cities for quick accesses in the future even if you are not registered with an account. As we track city specific aurora scores, we cover cities under the northern lights (aurora borealis), southern lights (aurora australis) and even cities where aurora hasn't occurred till date. Web page has sighting specific pages to chat on realtime aurora sighting, this will be released soon in the app version too. Enjoy hunting auroras with AuroraReach and find your next aurora destination with this app.
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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
Zustand
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Axios
React Navigation
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.
