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
Radar Glance
Window Compare places three possible start times side by side using the same official hourly forecast
$0.99
PRICE
$0.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 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 Radar Glance: 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
Implement high-resolution radar imagery and user-customizable layers.
Assumption to check: Limited radar resolution and accuracy
Validate with people who use this workflow before building.
Hypothesis 2
Add push notifications for severe weather alerts.
Assumption to check: No severe weather alerts
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to manage locations with more features (e.g., favorites, editing names).
Assumption to check: Limited location management
Validate with people who use this workflow before building.
Hypothesis 4
Integrate air quality index data for enhanced user experience.
Assumption to check: No air quality information
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
Window Compare places three possible start times side by side using the same official hourly forecast. See the highest hourly rain probability, coverage and alert availability before choosing a plan. HOW TO USE THE UPGRADE 1. Select a location and open Rain Window → Compare windows. 2. Choose the duration and start-time spacing. Review all three windows from the same NWS forecast snapshot. 3. Inspect coverage and timestamps. A lower-peak candidate is identified only when all three windows have complete, fresh data. 4. Freeze and share a report with source, time, hourly evidence and availability limits. Animated radar, saved locations, Rain Window, timeline controls, map tools and the offline field guide remain available. WHAT TO KNOW Official hourly comparisons cover supported US locations and need network access. The highest hourly precipitation probability is not a combined probability for the outing. Missing, partial, stale or future-dated data prevents a preferred-window result. Ties remain ties. An unavailable alert response is not no alerts. Radar observations apply to near-now windows only, and provider data may be delayed or unavailable. iPhone and iPad. No account required.
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.
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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.
