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.
Turn your phone into an off-road cockpit.
$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 4x4 Cockpit: 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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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 in existing navigation apps.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Real-time traffic updates can be slow or inaccurate.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Voice navigation often lacks clarity and responsiveness.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Difficulty in managing saved routes and places.
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.
Turn your phone into an off-road cockpit. Whether you're climbing rocky trails or exploring scenic routes, 4x4 Cockpit gives you real-time insight into your vehicle, terrain, and route — on your phone and on your car's CarPlay screen. Core Features: • Tilt Visualization — Track roll and pitch with large animated indicators, oversized percentage numbers, and risk-based colors that shift from safe to caution to danger • Adjustable Risk Limits — Set your own thresholds for when tilt gauges turn yellow and red, tuned to your vehicle and terrain • Speed, Altitude & Compass — View live driving data at a glance, with GPS-assisted heading for reliable direction while moving • Acceleration Bar — Monitor acceleration and braking with dynamic feedback • Slope Units Your Way — Show steepness in degrees (°), percent (%), per mille (‰) or vertical-to-horizontal ratio (1:n) • CarPlay Integration — Choose between Visual, Classic, and Extended display modes, with large sunlight-readable numbers; drag the readings into the order you want — the same order applies to your phone screen • Landscape & Portrait — Full support for horizontal and vertical orientation on Phone, including Reset Position when the device is mounted sideways • Metric or Imperial — Switch between km/h, m and mph, ft from the Settings screen (auto-detected on first launch); applies to the live cockpit, ride recordings and exported maps • 18 Interface Languages — English (UK), English (US), 中文, हिन्दी, Español, العربية, Français, বাংলা, Português, Bahasa Indonesia, اردو, Deutsch, 日本語, Naijá, Tiếng Việt, Türkçe, Polski and Русский — pick yours from a flag list; the on-screen instruction adapts too • Ride Recording — Record your route and export it as a map image with localized details • Offline Maps — Save maps for later use and export them with overlays and details • Smart Calibration — Reset Position to set your own level reference; recalibration prompts are skipped when a recent reading is already reliable • Optional Intro Screen — Instructions show on first launch and can be toggled off from Settings once you know the app • Live Sensor Dashboard — Motion, heading, gravity, GPS, and more in real time Built for off-road drivers, overlanders, explorers, and adventure travel. For informational use only. Always drive responsibly and mount your device securely.
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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.