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 Tracker Northern Lights
Aurorascope is your real-time companion for chasing the aurora borealis.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 5.0
5 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.
Build your own version
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 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 Tracker Northern Lights: 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 alerts based on specific conditions or thresholds.
Assumption to check: Limited customization options for alerts
Validate with people who use this workflow before building.
Hypothesis 2
Enable offline access to previously fetched data.
Assumption to check: No offline functionality
Validate with people who use this workflow before building.
Hypothesis 3
Provide educational content about auroras and their significance.
Assumption to check: Lack of detailed explanations for aurora indexes
Validate with people who use this workflow before building.
Hypothesis 4
Integrate sharing features for users to share alerts with friends.
Assumption to check: No sharing options for alerts or forecasts
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
Aurorascope is your real-time companion for chasing the aurora borealis. Pulled directly from NOAA Space Weather data, Aurorascope surfaces the live KP index, a 7-day forecast, optimal viewing windows, and a visibility chance tailored to your latitude. FEATURES • Live KP index with activity level and visibility chance • 7-day forecast with peak times and viewing duration • KP curve chart for short-term planning • Animated NOAA OVATION aurora maps (Northern + Southern) • Best viewing windows for tonight, tomorrow, and the weekend • Viewing tips for planning your chase • Configurable auto-refresh interval DATA SOURCE All data comes from the public NOAA Space Weather Prediction Center APIs. No account or sign-up required. The essentials are free to explore. A membership unlocks every feature, every advanced view, and every refinement we add over time — including the live NOAA OVATION animated aurora maps for the Northern and Southern hemispheres. Read the fine print: • Privacy policy — https://sumoftech.com/privacy • Terms of use — https://sumoftech.com/terms
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
Axios
React Navigation
React Native Maps
Zustand
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.
