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.
Photographing the Milky Way takes a lot of planning and timing
$7.99 · 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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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 Milky Way Tonight: map the core Photo & Video 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: Difficulties in capturing clear night sky photos
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited editing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent performance on older devices
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of user community 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.
Photographing the Milky Way takes a lot of planning and timing. Milky Way Tonight handles all of that for you in an easy to understand way. Open the app and the first thing you see is Tonight at a Glance: a plain-language summary of whether tonight is worth going out. It tells you when the Galactic Core rises and peaks, when the moon sets, what the cloud cover looks like, and how dark your skies are on the Bortle scale (light pollution levels) If tonight is a bust, it tells you the next clear window so you can start planning ahead. Below that is a 7-day forecast strip that color-codes each night by visibility quality and highlights the best opportunity in the week. Tap any day for a full breakdown. When you're ready to find a location, the Dark Sky Finder searches for darker skies near you, ranked by light pollution, cloud cover, and driving distance together. You'll find darker spots on a map and the best realistic option for tonight. The Composition Planner lets you visualize where the Milky Way arc will be positioned relative to a location before you ever leave home. See the galactic core position, plan your foreground, and show up knowing exactly what shot you're going for. Sky View not only opens a star map using your phone's compass, but with access to your camera the AR mode allows for real-time planning. Point it at the sky, the horizon or directly at your foreground to see exactly where and when the stars align over your composition. It's a powerful tool for scouting compositions in the field and knowing exactly when you need to be shooting. Core Alignment: While using Sky View, tap anywhere on screen to see exactly if & when the Milky Way Core will align above that foreground; the next time and for the rest of the season. The ultimate composition planner. H-Alpha boost mode shifts the overlay to highlight nebula and emission regions. Perfect for astro modified cameras. The visibility calendar is your personal Milky Way calendar, built off your exact location. It maps out every night of the year so you can plan shoots weeks or months in advance. Save any night to My MW Nights to add notes, see the sky conditions, and keep all your plans in one place. The NPF calculator helps you dial in the sharpest possible stars for your specific camera and lens combination, so you know the longest exposure you can shoot without trailing. When you're in the field, Dark Adaptation Mode tints and dims your screen red so your night vision stays intact. For anyone new to this type of photography, the Getting Started guide walks through the entire workflow from scratch, including how to read the data in the app, what gear settings to use, and how to actually find the Milky Way once you're in the field. Built by landscape astrophotographer Jack Fusco (@jackfusco). FEATURES - Tonight at a Glance: galactic core rise, peak, and window times for your location. Full nightly and core specific cloud forecasts - Nightly quality ratings: Excellent, Good, Brief, Limited, and Blocked with plain-language explanations - Next clear window: see exactly how many nights until conditions improve - 7-day Milky Way and cloud forecast strip - Dark Sky Finder: ranked by light pollution, cloud cover, and driving distance Bortle class and SQM ratings for any location - Composition Planner: visualize the galactic arc over your planned foreground - Sky View AR: live star map with camera overlay using your phone's compass - Monthly visibility calendar built from your exact location - Core Alignment - See exactly when the MW will line up over any foreground. - My MW Nights: save shooting nights with notes and sky data - NPF calculator: find the sharpest exposure time for your camera and lens - Dark Adaptation Mode: red screen tint to protect your night vision in the field - Offline support: cached forecast data available without a connection - Getting Started guide written for complete beginners No account required, no ads, no tracking
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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.