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.
SkySafari makes stargazing a simple pleasure
$17.99 · 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 SkySafari 7 Pro: map the core Reference 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: Users find it difficult to navigate complex menus.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited customization options for star charts.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Performance issues on older devices.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of offline access to saved data.
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.
SkySafari makes stargazing a simple pleasure. It has the largest database of any astronomy app, includes every comet, asteroid, satellite & solar system object ever discovered, offers unparalleled accuracy, advanced planning and logging tools, flawless telescope control, and provides the very best experience under the stars when you depend on it. Don’t postpone joy. Discover why SkySafari is the #1 recommended astronomy app for serious amateur astronomers since 2009. Here's what’s new in version 7: + Complete support for iOS 18 and iPhone 16. Version 7 brings a new and immersive stargazing experience. + Events Finder - go to the new Events section to unlock a powerful search engine that finds astronomical events visible tonight and far into the future. The finder dynamically generates a listing of moon phases, eclipses, planetary moon events, meteor showers and planetary phenomenon such as conjunctions, elongations and oppositions. + Notifications - the notifications section has been completely revamped to allow you to customize and manage which events trigger an alert notification on your device. + Telescope Support - telescope control is at the heart of SkySafari. Version 7 takes a giant leap forward by supporting ASCOM Alpaca, INDI & StarSense Explorer. These next generation control protocols allow you to effortlessly connect to hundreds of compatible astronomical devices. SkySafari 7 brings social stargazing to mobile devices with two new features to help you connect with other like minded people. OneSky - allows you to see what other users are observing, in real time. This feature highlights objects in the sky chart and indicates with a number how many users are observing a particular object. SkyCast - allows you to guide a friend or group around the night sky through their own copy of SkySafari. After initiating SkyCast, you can generate a link and conveniently share it with other SkySafari users via text message, apps or social media accounts. + Sky Tonight - jump to the new Tonight section to see what’s visible in your sky tonight. Expanded information has been designed to help plan your night and includes Moon & Sun info, calendar curations, events and the best positioned deep sky and solar system objects. + Improved Observation Tools - SkySafari is the perfect tool to help you plan, record and organize your observations. New workflows make it easier to add, search, filter and sort data. + Home Screen and Lock Screen Widgets keep your favorite astro information at your fingertips. The Small Touches: + You can now edit the Jupiter GRS Longitude Value in the Settings. + Better Moon Age calculation. + New grid & reference options allow you to display Solstice and Equinox markers, Orbit + Node markers for all solar system objects, and tick marks and labels for the Ecliptic, Meridian, and Equator reference lines. + Previous In-app Purchases are Now Free - this includes the H-R diagram, 3D Galaxy view, and the PGC galaxy and GAIA star catalogs. Enjoy. + Many more. If you haven't used SkySafari 7 Pro before, here's what you can do with it: + Hold your device up, and SkySafari 7 Pro will find stars, constellations, planets, and more! + Simulate the night sky up to 5MM years in the past or future! Animate meteor showers, conjunctions, eclipses, and other celestial events. + Control your telescope, log and plan your observations. + Optionally backup all of your observing data in our secure cloud storage and make it easily accessible to multiple devices as well as from our new web interface, LiveSky.com. + Augmented Reality (AR) mode + Night Vision. + Orbit Mode. Leave the Earth’s surface behind, and fly through our solar system. + Galaxy View shows the position of deep sky objects in our Milky Way! https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ https://www.livesky.com/privacy.html
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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.