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.
Know before you burn.
$0.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for UV Alarm: 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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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
Assumption to check: Limited user feedback on UV levels may lead to missed alerts
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Potentially confusing settings for new users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchases may deter users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Know before you burn. UV-Alarm monitors the UV index at your location and sends you a push notification the moment it exceeds your personal threshold. One tap tells you whether you need sunscreen — no scrolling through weather apps, no guessing. ▸ Real-time UV index with color-coded risk level ▸ Push notification when your threshold is reached ▸ Hourly forecast chart so you can plan your day ▸ Morning briefing with today's peak UV and time ▸ Home Screen, Lock Screen and Apple Watch widgets ▸ Personalized threshold based on your skin sensitivity ▸ Works worldwide — from your backyard to the equator WHY UV-ALARM? Most weather apps bury the UV index three screens deep. UV-Alarm puts it front and center. Set your personal limit once, and the app does the rest — quietly checking in the background and alerting you only when it matters. DESIGNED FOR YOUR SKIN Choose your skin type and UV-Alarm automatically suggests the right alert threshold. Fair skin gets warned earlier, darker skin later. Simple, personal, effective. ALWAYS VISIBLE Add a widget to your Home Screen or Lock Screen and see the current UV level at a glance — with the hourly trend and today's peak. On Apple Watch, a complication keeps the UV index on your wrist all day. YOUR LOCATION, YOUR RULES The app uses your current GPS location by default. Heading on vacation? Search any city worldwide and check the UV forecast before you pack. PRIVACY FIRST Your location is processed on your device. No accounts, no tracking, no server. Just you and the sun. One-time purchase. No subscription. No ads. Ever.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.