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.
FlightReady E6B is a modern flight computer with the most complete set of aviation functions, conversions, and utilities for planning and flying.
$9.99 · 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 FlightReady E6B: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
FlightReady E6B is a modern flight computer with the most complete set of aviation functions, conversions, and utilities for planning and flying. WHY PILOTS USE FLIGHTREADY E6B • Accurate. Conversions use exact defined factors, and airspeed and altitude calculations use the full U.S. Standard Atmosphere, maintaining accurate calculations above 36,000 feet. • Explained. Every function and conversion has built-in help that describes what it calculates, how to use it, and the formulas and conventions behind it. • Fast. Star the functions you use most to keep them at the top of the main menu, and your favorites sync to your other devices through iCloud. Open functions from Search, Shortcuts, Control Center, the Lock Screen, or the Action button. • Easy to use. Change a field's unit from the menu beside it, and every related field on the screen follows. Results automatically carry over to related functions, reducing repeated data entry. • Night-flight friendly. Dark mode uses a red-shifted amber color scheme designed for use in a dark cockpit. PLAN LEG ▸ Heading & Groundspeed: true heading, groundspeed, and magnetic and compass heading ▸ Time & Distance: leg time, distance, or groundspeed ▸ Required True Airspeed: the true airspeed and heading needed to make a planned groundspeed ▸ Fuel Consumption: fuel required, fuel flow, or endurance ▸ Point of No Return and Equal Time Point, with ETAs AIRSPEED, ALTITUDE, AND WEATHER ▸ Airspeed: actual TAS and Mach, plan Mach, plan TAS, and total air temperature ▸ Altitude: pressure, density, and true altitude ▸ Cloud Base: cloud base AGL and MSL, and relative humidity, from temperature and dew point WIND ▸ Wind Component: headwind and crosswind ▸ Unknown Wind ▸ Wind Correction Angle CLIMB & DESCENT ▸ Climb/Descent Rate: required gradient in ft/nm, percent, and degrees, and rate in ft/min ▸ Top of Descent: determine when to begin descent ▸ Gradient Conversion: percent, degrees, and ft/nm PERFORMANCE ▸ Rate of Turn and Turn Radius for any bank angle and airspeed ▸ Standard Rate Bank Angle and Standard Rate Turn Radius ▸ Hydroplane Speed for rotating and non-rotating tires ▸ Load Factor in Level Turn ▸ Pivotal Altitude, AGL and MSL NAVIGATION ▸ DME Arc Distance ▸ Lead Turn Distance: how far before a fix to start the turn ▸ Thunderstorm Cell Height from radar tilt and distance ▸ Time/Distance to Station from a VOR or NDB bearing change ▸ Holding Pattern: determine entry type and visualize the holding pattern AERODYNAMICS ▸ Lift ▸ Power & Torque WEIGHT & BALANCE ▸ C.G. & Moment: enter any two of weight, CG, and moment to get the third ▸ C.G. Shift: enter any three values to get the fourth, such as how much weight to move ▸ CG % of MAC CONVERSIONS ▸ Temperature: °C, °F, K, and °R ▸ Distance: nautical miles, statute miles, kilometers, feet, and more ▸ Speed: knots, mph, km/h, ft/min, m/s, and Mach ▸ Pressure: inHg, mbar/hPa, kPa, psi, mmHg, and more ▸ Fuel @ 15°C: gallons, liters, pounds, and kilograms of 100LL, Jet-A, Jet-B, JP-8, and water ▸ Weight & Mass, Area, Liquid Volume (US and imperial), Volume, Density, Power, and Torque TIME UTILITIES ▸ Time Calculator: add, subtract, multiply, and divide times, in decimal or formatted time, including h:m ▸ Flight Log Calculator: block and flight times from your out, off, on, and in times ▸ Standard Calculator ▸ IFR Timer: a countdown that keeps running when you lock your phone, with a notification when time is up SETTINGS ▸ Results to as many as four decimal places ▸ Day, Night, and Auto appearance
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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 functionality.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Steep learning curve for new users.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchase confusion.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Occasional bugs during calculations.
Validate with people who use this workflow before building.
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.