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.
Does your vehicle have a vibration problem? NVH takes the guesswork out of diagnosing it!
$99.99 · 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 NVH: map the core Utilities 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 data interpretation confusing.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited customization for measurement settings.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent measurement accuracy across devices.
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.
Does your vehicle have a vibration problem? NVH takes the guesswork out of diagnosing it! Just follow the road test instructions in the tutorial, and the NVH app can automatically detect the type of vibration your vehicle is experiencing. - There are 14 types of vibrations: - Tire speed-related (3 types) - Driveshaft speed-related (3 types) - Engine speed-related (7 types) - Electric Motor Speed Related (1 type) - Each type of vibration has unique causes. A vibration type is not the same thing as a vibration source. There are many possible causes (sources) for each vibration type. Just follow the app's diagnostic steps to identify the source of vibration. - There are almost 300 possible causes of vibration concerns in today's vehicles. - Tire speed-related (77 Possible Causes) - Driveshaft speed-related (123 Possible Causes) - Engine speed-related (76 Possible Causes) - Electric Motor Speed Related (Several Causes) More than "Just an App," this is a tool for professional service technicians and anyone with a vibration concern on their vehicle. KEY FEATURES: - QUICK, ACCURATE, AND PRECISE: The NVH App can be set up and ready to begin diagnosis in as little as 30 seconds! - VIBRATION DIAGNOSIS: Place or mount your device against a solid surface in your vehicle, and the internal sensors will measure and analyze your vehicle's vibration problem. - LIVE RESULTS: Watch one of three different displays that show you live measurements of your vibration in various ways to ensure you have all the information you need. - MULTI-PART ANALYSIS: - AUTOMATIC: Not sure how to interpret your results? NVH will analyze your road test for you and tell you which type of vibration problem your vehicle has. - TOTALS: Want to get into the numbers yourself? NVH shows you statistics for each type of vibration detected and breaks them down by vehicle speed to give you even more information. - PDF REPORT: print, email, or save a PDF diagnostic report showing all the analysis details. - RECORD: Record your road test and watch it again in real-time, or pause and go through it step by step. - SHARE: Want another field service engineer, mechanic, or friend to see your test and give their opinion? Export your recordings to an NVH file to import them into their device and view your recordings and their analyses. You can also print or send a PDF report detailing the recording analysis. - VEHICLE DATABASE: NVH has an extensive database of 45,184 vehicles to choose from, so that you can pick your vehicle and go! Can't find your vehicle in the database? Not a problem! You can manually enter your vehicle's information and save it for future use. To see a list of supported vehicles in the NVH vehicle database or what information you will need to know about your vehicle if it is not in the database, visit http://www.vibratesoftware.com/nvh/database.htm. - DIAGNOSTIC HELP AND VIDEOS: Whether you are a seasoned field service engineer, experienced technician, or a self-made mechanic, NVH's comprehensive diagnostic help file has something for everyone. Read through detailed instructions and information accompanied by hundreds of photos and dozens of videos. With over 28 years of vibration diagnostic expertise built into the troubleshooting steps, you will be in good hands. - SUPPLEMENTARY TOOLS: NVH contains a suite of extra tools to help with various automotive tasks: - Measure driveshaft angles - Check the accuracy of your speedometer - Measure raw vibration frequencies and amplitudes OPTIONAL BLUETOOTH OBD-II DLC INTERFACES: - OBDLink MX+ - Nexiq Blue-Link 2 These tools will read the engine RPM directly from the vehicle and use it for engine speed-related vibration diagnosis. NOTE: This application is intended to be used by a passenger in a vehicle, not the driver. You assume total responsibility and risk from using this application.
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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.