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.
Observe the International Space Station in the sky above you and find out where human-made satellites are right now with SATELLITE TRACKER by STAR WALK!
Free · 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 Satellite Tracker by Star Walk: 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: Difficulty finding specific satellites quickly.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited real-time tracking updates.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Complexity in understanding satellite details.
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.
Observe the International Space Station in the sky above you and find out where human-made satellites are right now with SATELLITE TRACKER by STAR WALK! MAIN FEATURES - Real-time satellite tracking - The most outstanding satellites - Satellite flyby timer & pass predictions - Hand-picked passes & customizable location - Fly-with-satellite view - Satellite orbit over Earth Enjoy the easy and comfortable real-time satellite tracking with SATELLITE TRACKER! ► Select a satellite from the list and see its current location in the sky in real-time or track satellite live orbiting Earth. You can track the most famous and brightest satellites, SpaceX’s Stalinks, communications and weather forecasting satellites, and much more! ► At the top of the main screen, the flyby timer counts the amount of time left until the next flyby of the selected satellite over your location. Tap the down arrow to open the list of passes that will be visible from your location in the nearest future. ► Get precise predictions when satellites are visible in the sky above your location. The list of passes allows you to set any alert (one or more) for the satellite's pass that you’d like to witness. Switch between the app’s modes (Globe view, Satellite View, and Sky view) by tapping the round icons at the bottom of the screen. -> Choose Satellite View to enjoy the 3D image of a satellite flying over Earth with the real speed and location. -> Globe view allows you to see a satellite’s trajectory around the Earth's 3D model and on the Earth’s map. -> Find the satellites in the sky by following the arrow pointer with the Sky View mode. The app contains ads. The ISS is available by default. With SATELLITES LIVE subscription, you get an instant ad-free access to tracking satellites live orbiting over Earth and in the sky, the timer for the next appearance, and alerts about the nearest flybys. SATELLITES LIVE is a renewable subscription with a 1-week FREE trial that gives you access to content from within the app on an ongoing basis. Payment will be charged to your iTunes account. At the end of each subscription duration (1 month), the subscription will automatically renew until you choose to cancel it, and your account will be charged for renewal 24 hours before the end of the current period. Users can manage their subscriptions in their account settings on the App Store. Privacy policy: https://vitotechnology.com/privacy-policy.html Terms of use: https://vitotechnology.com/terms-of-use.html Never miss satellites passing by in the sky with SATELLITE TRACKER!
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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.