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.
Sun Nudge is your gentle daily reminder to get more natural daylight — without the hassle.
$0.99
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 Sun Nudge: map the core Health & Fitness 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: Inaccurate tracking
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Generic workout plans
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No social 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.
Sun Nudge is your gentle daily reminder to get more natural daylight — without the hassle. It reads Time in Daylight from Apple Health. No timers to start. No account to create. Just a clear picture of today’s light on iPhone and Apple Watch. What’s new in 1.1 Sun walks When daylight and steps overlap, Sun Nudge glues those windows into a sun walk — minutes, distance, and the time it happened. You’ll also see what share of your steps were outside. When the sun happened A morning, midday, and evening strip so you can tell if your light was a sunrise walk or a late-afternoon stretch. Morning light A quiet streak for days whose first daylight is before a time you pick. Week at a glance Seven checks for the days you hit your goal, plus a month you can scroll back through. Still here, still calm • Daily daylight ring and streak • A goal you can change anytime • Sunscreen logging and reapply nudges (estimates only — not medical advice) • Optional UV and golden hours when you turn on location • Home Screen and Lock Screen widgets, Control Center, and Shortcuts • Apple Watch pages for today, this week, your walk, and sun safety Privacy, on purpose Sun Nudge has no account and no ads. Time in Daylight, steps, and walking distance stay on this device. Location is optional and only used for UV and sky when you ask for sun safety. Automatic daylight minutes come from Apple Watch via Apple Health. Allow Steps and Walking + Running Distance if you want sun walks; Time in Daylight still works without them. Step into the light. Feel the difference.
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.