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
Michigan Storm Chasers
Introducing our brand new Michigan Storm Chasers app!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
796 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 included19 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Michigan Storm Chasers: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Introducing our brand new Michigan Storm Chasers app! IMPORTANT: Michigan Storm Chasers, LLC is not a government agency. We are not affiliated with and not claiming to represent any government agency. More on this and our Terms of Use/Service and Privacy Policy at the bottom. Michigan Storm Chasers helps keep you safe, keep you dry, and save you time. By combining top-tier weather data, government weather alerts, our custom severe weather updates, and the detailed reports from the most passionate weather community on social media, we are able to provide you with the best possible forecast. Free version: Michigan Storm Chasers Alerts Custom Severe Weather Updates (MSC Updates) Accurate Current Conditions 15 Day Forecast 15 Day Hourly Forecast Past & Future Radar (30 min past - 1.5 hour future) Report Weather feature Ads "Upgrade" Subscription: *No ads Our new smooth mosaic radar! (30 min past - 12 hour future) Custom Severe Weather Updates (MSC Updates) Michigan Storm Chasers Alerts Accurate Current Conditions 15 Day Forecast 15 Day Hourly Forecast Report Weather feature "Extended" Subscription: *No ads Our new, ground breaking smooth radar! (2 hours past - 48 hours future) Custom Severe Weather Updates (MSC Updates) Michigan Storm Chasers Alerts Accurate Current Conditions 15 Day Forecast 10 Day Hourly Forecast 6.5 Hour Minute Forecast Report Weather MSC Pro Subscription: Everything in "Extended" subscription Advanced professional radar suite 50 frames of animation Single/Swipe/Dual/Triple/Quad modes MSC StormRisk Beta (Severe percentages on storms) First ever Canadian SRV (Storm Relative Velocity) First ever Canadian storm tracks Fastest raw Canadian radar data available And so much more! A huge thanks to all those who have supported us over the years and have made this all possible! If you have any questions or concerns, please email us at [email protected] Thank you, MSC team Terms of Use: https://michiganstormchasers.com/app-terms-of-service/ Privacy Policy: https://michiganstormchasers.com/app-privacy-policy/ DISCLAIMER: "Michigan Storm Chasers, LLC" collects and displays weather alerts, forecast data and radar data from the National Weather Service (NWS) and Environment and Climate Change Canada (ECCC). However, "Michigan Storm Chasers, LLC" is NOT a government agency. We are also NOT affiliated with and NOT claiming to represent any government agency. We are an independent organization made up of several meteorologists, experienced severe weather forecasters and weather enthusiasts. By using our app, services, or any associated content, you implicitly agree to use the services and data available as is with no warranty issued or implied and should be used for informational purposes only. Any use of this data for decision making processes is done at the sole risk of the end user. To learn more, please view our Terms of Use/Service and Privacy Policy. And if you have further questions, please email us directly at [email protected] - Thank you!
Written user reviews are not shown here. Check current App Store reviews >
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 customize alert preferences and notifications.
Assumption to check: Limited customization options for alerts
Validate with people who use this workflow before building.
Hypothesis 2
Optimize map loading for faster performance.
Assumption to check: Performance issues with radar map loading
Validate with people who use this workflow before building.
Hypothesis 3
Integrate multiple weather data sources for improved accuracy.
Assumption to check: Inconsistent accuracy of weather data
Validate with people who use this workflow before building.
Hypothesis 4
Add social sharing and community discussions around weather events.
Assumption to check: Lack of community features
Validate with people who use this workflow before building.
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 Query
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.
