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
FlightSky: Live Plane Radar
"See which plane is flying overhead right now — point your phone at the sky and FlightSky tells you the airline, the route, the aircraft type and where it is heading.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
2,058 ratings · Top 15%
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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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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.
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 FlightSky: Live Plane Radar: map the core Travel workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
"See which plane is flying overhead right now — point your phone at the sky and FlightSky tells you the airline, the route, the aircraft type and where it is heading. WHAT YOU CAN DO • Track any flight live on a real-time plane radar map, worldwide • Point your phone at a plane and identify it instantly with AR • See what the pilot sees with 3D and Cockpit View • Tap any aircraft for route, altitude, speed and live status • Search by flight number, airline, airport, route or aircraft type • Filter the sky by military, cargo and popular flights • Check live arrivals and departures for thousands of airports • Get delay and gate change alerts before you leave for the airport • Replay past flights and review flight history WHO IT IS FOR Waiting on someone's flight and want to know if it is actually on time. Curious which plane just went over the house. Planning a trip and watching for gate changes. Spotting aircraft as a hobby. FlightSky covers all four. FREE AND PREMIUM FlightSky is free to download. Live tracking, plane search and airport boards are included at no cost. Premium unlocks unlimited tracking, extended flight history, 3D and Cockpit View and advanced filters. Premium is a subscription. You will see the exact price and renewal date before you are charged, and you can cancel any time in your App Store account settings. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends. Terms: https://www.oceanfloatmobile.com/terms-and-conditions/ Privacy: https://www.oceanfloatmobile.com/privacy-policy/"
Written user reviews are not shown here. Check current App Store reviews >
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
Implement real-time updates to keep flight data current.
Assumption to check: Limited flight data updates can lead to stale information.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify UI by using collapsible sections for additional details.
Assumption to check: User interface can feel cluttered with too much information.
Validate with people who use this workflow before building.
Hypothesis 3
Add a feature for users to track and view their flight history.
Assumption to check: Lack of detailed flight history for users.
Validate with people who use this workflow before building.
Hypothesis 4
Provide clear explanations of premium features and benefits.
Assumption to check: In-app purchasing can be confusing for users.
Validate with people who use this workflow before building.
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.
