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.
Easily and quickly identify and locate stars, planets, comets, constellations, galaxies and more by simply pointing to the sky
$3.99 · 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 GoSkyWatch Planetarium: map the core Navigation 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 offline access to star data.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No community features for sharing observations.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface can be overwhelming for new users.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchase structure can be unclear.
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.
Easily and quickly identify and locate stars, planets, comets, constellations, galaxies and more by simply pointing to the sky. Your personal telescope to the wonders in the night sky. Go outside and explore with GoSkyWatch Planetarium. ***** As seen in Apple's iPad 2 event ***** Featured on ABC's "The View" ***** Featured in "Wired" magazine No in-app purchases! One download for your iPhone, iPad and iPod touch. We don't think you should pay twice for the same app on a bigger screen. --- What People Are Saying "Powerful and easy to use, with excellent animation and the widest zoom range." — D.Schroeder, University professor "GoSkyWatch Planetarium should not be missed regardless of whether you are a casual or hard-core fan of astronomy." — AppAdvice "I have more than 10 astronomy apps on my iPhone and this is by far the best. Everything I need and easy to use." — Pat, iTunes reviewer --- What makes GoSkyWatch different to other apps? • Easy to use — No buttons to press or modes to select, just point to the sky to start exploring. • Designed specially for efficient outdoor use. • Touch free identification — Information pops up on screen as you move. Great for those cold nights with gloves on! • Popup images — No need to keep zooming in and out just to see what is out there. • Full 180 degree display — See at a glance what is in the sky and where without having to pan around. • Don't need to hold level — Displays the sky view and information at the correct orientation when held at any angle not just landscape or portrait. • Gyroscope compass auto calibration — No need to calibrate the gyroscope. Advanced adaptive algorithms for smooth and accurate positioning. • Planets shown with relative brightness to stars — No oversized graphics that prevent you from distinguishing a planet from surrounding stars. • Unique target identification — Touch drag scheme for greatest accuracy since your finger doesn't hide what you are trying to identify. • Minimal on screen text — Stars and planets easier to identify since they are not covered by text. Features: Identify • On screen object name, brightness and distance • Contains all stars visible to the naked eye • Light adjustment for viewing conditions • Red light mode for night vision • Touchless navigation even for the iPod touch without a compass. Find • Looking for a planet, star, comet, constellation or galaxy? Just use the finder and let the arrow guide the way • Search stars and DSOs sorted by name, distance or magnitude • Moon phase calendar • Sun rise/set times Explore • Day, sidereal and time lapse animation • Over 200 images of planets and deep sky objects • Messier and Caldwell catalogs with images • Actual image taken of the Milky Way • Below horizon display • Look back in time with the birthday star search. Find out how old you were for the star light seen. Learn • Constellation images, boundaries and patterns • Solar system, star, comet, DSO, constellation Wikipedia • Ian Ridpath's constellation StarTales • Interactive graphical ephemeris • Planet, star, constellation and DSO ephemeris data More • High performance graphics • Easy setup using auto location or built in city list • Location favorites * No internet connection required. Internet optionally used for auto location, viewing Wikipedia information and StarTales. Many more enhancements to come as free updates. Free International Space Station real time tracking and viewing opportunities available with the companion GoISSWatch app.
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.