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.
safercar is your connection to automotive safety recall information directly from the official source—the national highway traffic safety administration
Free · 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 SaferCar: 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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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 vehicle search options
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconsistent data accuracy
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor user interface clarity
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of push notifications for recalls
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.
safercar is your connection to automotive safety recall information directly from the official source—the national highway traffic safety administration. every year, nhtsa manages millions of recalls affecting vehicles, tires, car seats and related equipment. safercar will notify you about any safety recalls affecting your vehicle or equipment as long as you leave it running in the background. with the safercar app, you can: • enter a vehicle identification number (vin) for as many vehicles as you own. your virtual garage will accept vins for cars, trucks, vans, suvs, motorcycles and more. • enter any related automotive products you own that could be subject to safety recalls, like tires, car seats and trailers. • opt-in to receive notifications on your mobile device for each of the vehicles and products you’ve entered. • know you’ll be better informed should any recall impact your vehicle or related equipment. • check out nhtsa 5-star safety ratings, and our online car seat tools that help you find the right seat, understand ease-of-use and check to make sure it’s installed correctly. • know that nhtsa will never store or share your user data. to protect your privacy, nhtsa doesn’t store your device or vin information on a server in order to send you a notification when a new recall is issued. this means safercar needs to run in the background so it can check for recall updates periodically from your device. if you force quit safercar, immediately reopen the app. from apple: you should force an app to close only if it’s unresponsive.
Written user reviews are not shown here. Check current App Store reviews >
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.