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.
App Overview
SkyView® Satellite Guide
From the makers of the award winning SkyView® app comes a stunning new way to discover over 20,000 satellites day or night.
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.2
594 ratings · Top 30%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for SkyView® Satellite Guide: 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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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Enhance database with user-generated content and community contributions.
Assumption to check: Limited satellite database compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Optimize AR performance for a wider range of devices.
Assumption to check: AR functionality can be buggy on older devices
Validate with people who use this workflow before building.
Hypothesis 3
Implement a guided tutorial for new users to enhance initial engagement.
Assumption to check: Subpar user onboarding experience
Validate with people who use this workflow before building.
Hypothesis 4
Clarify subscription options and provide more visible paywall information.
Assumption to check: In-app purchase confusion
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
From the makers of the award winning SkyView® app comes a stunning new way to discover over 20,000 satellites day or night. Satellite spotting is now for everyone. Just point your iPhone at the sky to identify the International Space Station, Hubble, GPS satellites, and thousands more as they soar above your location. Discover new and interesting satellites in Earth mode. Pan around the Earth, touch satellites over distant countries, zoom-in for a close-up view, and take wonderful photos to share with friends. Features: • Simple: Point your iPhone at the sky to identify satellites passing overhead at your location. • Interactive: Pan around Earth to discover new satellites and zoom-in for a beautiful 3D close-up view. • Customizable: Build a list of your favorite satellites and filter other satellites from your view. • Sighting reminders: Quickly schedule reminders to notify you when a visible satellite will be in the sky above your location. • Night friendly: Preserve your night vision with two easy-access night modes (red or green filters). • Social: Capture and share beautiful images with friends and family on social networks. • Space Junk: Uncover thousands of rocket bodies and other space debris that orbit Earth. • Mobile: Does not require a data signal or GPS to function, take it anywhere. • Comprehensive: Includes 20,000 satellites with thousands of facts, descriptions, tidbits, and satellite images.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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BUILD KIT DIFFICULTY
Advanced
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.
