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.
Every day has a best hour
$1.99 · 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.
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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 Lunar Hunt & Fish: map the core Sports 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 engagement features, such as social sharing
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Basic design with minimal customization options
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of offline access to lunar data
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Confusing navigation between screens
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.
Every day has a best hour. Most people just don't know it. Lunar Hunt & Fish uses solunar theory to show you when fish and game are most likely to be active — down to the hour. It's not magic. The moon keeps a schedule, and so does the wildlife under it. Each day opens to a rating at a glance — Excellent to Poor — with the major and minor periods plotted on a 24-hour timeline. Majors run about two hours, when the moon is overhead or underfoot. Minors run about an hour, at moonrise and moonset. Four windows a day, sliding about fifty minutes later each morning as the moon pulls ahead of the sun. Swipe between days to scout ahead, and share any day as an image — handy for texting a buddy before a trip. The calendar lays out a full month of ratings and moon phases in one view. Swipe between months to plan further out. The strongest days surface on their own, so you're not squinting at numbers trying to compare. And since the moon's schedule is fixed, you can look as far ahead as you need to. Your spots — a lake, a lease, a stretch of coast — stay one tap away. Add them by searching or by dropping a pin on the map. Everything is computed on-device, so it works from a base camp, a blind, or a boat with no signal. No account, ever. A bit of history. John Alden Knight published solunar theory in 1926 after noticing that feeding and movement in fish and game lined up with the moon's position — something every serious hunter and angler already half-knew but couldn't quite pin down. He catalogued the patterns, named the periods, and wrote it up. Lunar Hunt & Fish uses his method. The strongest days fall near the new and full moon, when solar and lunar pull align. Knight considered it a red-letter day when a major period also coincided with sunrise or sunset. Those are the days worth setting an alarm for. "The time of day, not the day itself, determines whether sport will be good." — John Alden Knight, Moon Up — Moon Down, 1942 Pay once. No subscription, no tiers, no "pro" version. Your location is used only to compute the moon's position and never leaves your device.
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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.