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
Airplane Flying Handbook
Airplane Flying Handbook is the official FAA source for learning to fly and the source for many FAA Knowledge Exams test questions
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
106 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.
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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 included17 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 Airplane Flying Handbook: 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
Implement advanced search features with filters for chapter content.
Assumption to check: Limited search functionality and filtering options.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify navigation with a more focused bottom tab structure.
Assumption to check: In-app navigation can feel cluttered.
Validate with people who use this workflow before building.
Hypothesis 3
Integrate a feature for users to suggest updates or report outdated content.
Assumption to check: Content updates may not be timely.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to download chapters for offline reading.
Assumption to check: No offline access to chapters.
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
Airplane Flying Handbook is the official FAA source for learning to fly and the source for many FAA Knowledge Exams test questions. The Airplane Flying Handbook app is a "must" for all pilots. This app introduces the basic pilot skills and knowledge essential for piloting airplanes. It benefits student pilots, as well as those pilots wishing to improve their flying proficiency and aeronautical knowledge, pilots preparing for additional certificates or ratings, and flight instructors engaged in the instruction of both students and licensed pilots. This app introduces you to the realm of flight and provides information and guidance in the performance of procedures and maneuvers required for pilot certification. It contains information on: + flight training + ground operations + basic flight maneuvers + slow flight + stalls + spins + takeoff and departure climbs + ground reference maneuvers + airport traffic patterns + approaches and landings + performance maneuvers + night operations + transition to complex airplanes + transition to multiengine airplanes + transition to tailwheel airplanes + transition to turboprop powered airplanes + transition to jet powered airplanes + emergency procedures.
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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
Starter
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.
