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.
tl;dr: Simply the best training app for VOR/NDB navigation
$19.99 · 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 VOR Tracker - IFR Nav Trainer: map the core Education 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: Users find the app can be confusing with multiple modes.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Some users report bugs during flight logging.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited customization options for flight logs.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: High price point for the app.
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.
tl;dr: Simply the best training app for VOR/NDB navigation. Are you not comfortable with flying holding patterns and radial interceptions, especially in stressful situations like a check ride or a sim assessment? You do understand what you have learnt, but find it difficult to apply once the needles start moving? Then look no further, VOR Tracker is what you need. VOR Tracker is a small but powerful training tool for pilots. It is the only one of its kind for the iPhone & iPad, providing the real aircraft feel the other apps are missing! VOR Tracker is a real IFR simulation, so you will find no multiple choice questions or yet more methods which might or might not work for you. You can actually practice IFR procedures in real time, using either a fixed card CDI, RMI, HSI, or EHSI, which provides additional information like wind, track, and groundspeed. Practice holding patterns, DME arcs, radial interceptions, and 2 needle tracking in real time. It is practice what it is all about! There is no need for explaining again and again what you already know from flight school. It is about applying your knowledge when the flight instruments start moving! Wherever you are, IFR training is only two taps away! Chose between a VOR and NDB and get used to the different characteristics. The NDB comes with atmospheric disturbances and an adjustable dip error to match the instrument you are used to. Don’t waste your time trying to imagine what you would do in the aircraft – just do it! VOR Tracker is designed for: - Student pilots who have the theoretical knowledge for flying IFR procedures, and want to save money by preparing for their pilot training. - Pilots who want to refresh their IFR navigation skills for an upcoming check ride. - Pilots going for an assessment. Holding patterns and radial interceptions are commonly used during sim assessments and can really spoil the day. Being prepared will make the difference! - People who have the knowledge of flying IFR procedures and want to give it a try. VOR Tracker is NOT: - a game. - a flight simulator, it focuses on navigation at a constant speed and altitude. - a flight training course teaching you how to fly IFR procedures. Still interested? Read on to find out how VOR Tracker will boost your skills in no time! - Choose between a fixed card CDI, RMI, HSI, or EHSI. - Use the instruments like you would do in the real aircraft. - Use the map mode to verify your progress. - Lost? Use the help function to display the holding pattern entries in the map mode. - Things are going a bit too fast? Use the freeze mode to orientate. - Getting bored in straight flight? Use the fast mode. - You want to start over or change the aircraft’s position or heading? Just drag & drop, or twist the aircraft symbol. - Practice a particular holding pattern or radial interception exercise over and over again from new, random starting positions using the reposition button. - Start with no wind and increase the difficulty later on by adding wind. - To add more realism, the wind can be selected to be gusty and/or variable in direction. - Getting settled? Why not increase the aircraft’s speed in the settings menu? - Customize your own missions and adjust the wind the way you want. - Use the hidden wind function to add a realistic challenge. - Analyze your progress in the map mode. Rewind and start over. The previous track lines will still be displayed for you to see the difference. Prepare yourself without wasting expensive flight time – use VOR Tracker to brush up your IFR skills! VOR Tracker is the most efficient trainer for holding patterns and radial interceptions available on the App Store. Supporting you during your IFR training, it will pay for itself in no time. Take that as a promise!
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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.