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
Step's Aurora Guide
Created by an aurora photographer, the app is your perfect companion for aurora adventures
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
107 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 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 Step's Aurora Guide: 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
Expand location database and allow user submissions
Assumption to check: Limited locations for aurora viewing
Validate with people who use this workflow before building.
Hypothesis 2
Implement reliable and customizable alert settings
Assumption to check: Inconsistent notifications
Validate with people who use this workflow before building.
Hypothesis 3
Provide educational content about auroras and forecasts
Assumption to check: Lack of detailed explanations for forecast data
Validate with people who use this workflow before building.
Hypothesis 4
Enhance UI with more engaging visuals and animations
Assumption to check: Basic UI layout
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
Created by an aurora photographer, the app is your perfect companion for aurora adventures. Make informed decisions, get timely alerts, and improve your chances of seeing and capturing the northern lights and aurora australis. Discover the features that make this app indispensable: Timely Alerts Don't miss the aurora. Receive notifications about elevated Kp-index levels in the coming days and when your chances of witnessing the aurora within the next hour are becoming high. Get the notice you need to be ready. Real-time Aurora Forecast Witness the aurora probability in real-time with the SWPC Ovation aurora forecast. Instantly see current aurora probabilities, monitor unfolding trends, and pinpoint the anticipated peak times — all tailored for your location. These insights pair perfectly with aurora alerts. Additionally, solar wind parameters offer a deeper understanding of current aurora activity. Precise Decision-making Make informed choices for tonight and beyond. Access hour-by-hour updates on geomagnetic activity, cloud coverage, temperature, and wind forecast. Compare conditions for your current location and up to 5 custom spots. Advanced Planning Stay one step ahead with our 27-day geomagnetic activity forecast. Seamlessly align your photography sessions with the optimal moon phase and ensure darkness prevails in your selected locations. Track the aurora season from the start. Expert Text Guide Receive tailored advice based on aurora and weather forecasts, moon positioning, and your location. Discover whether the aurora will grace the horizon or dance overhead. Optimise your shots with tips on capturing reflections and shooting under moonlight. Benefit from forecast-based recommendations and camera settings guidance. Additional Features and Beyond Experience a range of other useful features, with more updates on the horizon. Global Applicability The app is designed for global use in all regions where auroras can be visible, including the United States, Canada, Australia, New Zealand, Iceland, Norway, Sweden, Finland, Russia, the United Kingdom, Ireland, Denmark, and more. Aurora looks the same — the landscape makes the difference. Subscription Options The app is available with a weekly, monthly, or yearly auto-renewable subscription, each with a 3-day free trial and full access to all app features, including High Kp-index and Aurora alerts. Download the app and start your 3-day free trial today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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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
axios
zustand
expo-notifications
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.
