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.
Your ultimate driving companion - a modern GPS speedometer to track speed, distance, and every trip in detail.
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 Speedometer: Driving Tracker: 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 customization options for speed display
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of offline capabilities
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No voice feedback for speed alerts
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Basic user interface lacking modern design
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.
Your ultimate driving companion - a modern GPS speedometer to track speed, distance, and every trip in detail. Whether you’re driving, motorcycling, cycling, running, or boating, Speedometer delivers real-time GPS speed with beautiful digital, analog, and HUD displays, along with powerful trip analytics. TRIP RECORDING & ROUTE TRACKING • Distance, duration, and moving time • Average and maximum speed • Elevation gain, min/max altitude ROUTE PLAYBACK • Relive your trips on a full-screen map. Watch your recorded route playback with every turn, stop, and stretch of road - on standard, satellite, or hybrid maps. SPRINT TIMER (0–100 AND MORE) • Measure your acceleration performance with configurable sprint ranges. Track 0–100 km/h, 60–120, or any custom range. Sub-second precision with GPS interpolation. Compare your best times with trophy rankings. RICH STATISTICS & CHARTS • Speed over time and elevation profile charts • All-time top speed records with gold, silver, and bronze rankings • Speed distribution breakdown • Most visited cities • Total distance, trips, and lifetime stats DYNAMIC ISLAND & LIVE ACTIVITIES • See your current speed right on the Dynamic Island and Lock Screen while recording a trip. CarPlay & Automated Recording • See live speed and trip stats on your car's display, and start recording automatically with Siri Shortcuts or when you connect to your car - drive hands-free. THREE BEAUTIFUL DISPLAYS • Digital - glowing rings with centered speed readout • Analog - Classic car dashboard gauges with smooth needle animations. Includes 50+ gauge styles such as automotive, racing, sports, marine, navigation, and more. • Map - full-screen live map with real-time speed overlay WINDSHIELD HUD MODE • Turn your iPhone into a heads-up display. Mirrored text reflects off your windshield for safe, at-a-glance speed monitoring at night. LIVE MAP VIEW • Follow your route in real time on standard, satellite, or hybrid maps. See your speed, compass heading, GPS signal strength, and trip stats — all on one screen. OBD II LIVE DIAGNOSTICS • Live engine data: RPM, coolant, fuel level, battery voltage, throttle, O2 sensors, catalyst temps, and more • Read and clear stored, pending, and permanent fault codes with plain-language descriptions • Readiness Monitors to see if your car is set for an emissions inspection • Full Vehicle Info readout including VIN, Calibration ID, and ECU name • OBD readings on CarPlay, reorderable alongside your trip stats • Per-vehicle OBD history auto-matched by VIN • One-tap PDF diagnostic report to share with your mechanic SIRI & SHORTCUTS • "Hey Siri, start a trip in Speedometer" - control trips hands-free • Start, stop, pause, and resume trips with voice commands • Create automations in Apple Shortcuts - trigger trips via CarPlay, Bluetooth, NFC, Focus Mode, or Action Button VIDEO RECORDING • Record your drive with a real-time speed overlay burned into the video • Choose Box or Line overlay style at 720p, 1080p, 2K, or 4K • Videos save directly to your Photos library SHARING • Share trips as beautiful stats cards - with or without route map • Export trips as GPX files for use in other apps • Backup and restore trips with the .speedometer transfer format GPX IMPORT • Import GPX files from any source with a full route preview before saving VEHICLE MANAGEMENT • Add and manage vehicles with make, model, year, license plate, and custom colors • Custom type names for unique vehicles FUEL & MAINTENANCE • Track fuel fill-ups with cost, volume, and economy • Log maintenance and set service reminders • Manage fuel stations and garages • Per-vehicle fuel units (L/100km, MPG, km/L) • Currency support for cost tracking PRIVACY FIRST • All data stays on your device. Export or back up your trip history anytime. Download Speedometer and turn every journey into data. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://speedometerproapp.com/privacy
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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.