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.
The universal GPS tripmaster for off-road, overland and rally — the full 3pMaster experience on iPhone and, at its best, on iPad
$22.99
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.
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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.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
The universal GPS tripmaster for off-road, overland and rally — the full 3pMaster experience on iPhone and, at its best, on iPad. More on screen, on-screen speeds, and precision timers for the demanding navigator. Trusted by off-roaders, overlanders and ralliers since 2013. 3pMaster Pro is one app for every device. On iPad, the larger screen shows more at once — speeds, timing, and distance side by side — so your co-driver reads everything without swiping. Follow your paper or printed roadbook while the app handles the numbers. WHY PRO • Universal app — one purchase, runs on both iPhone and iPad • iPad layout shows more data at a glance: actual speed, average speed, and travel time • Precision timers on iPad — choose seconds, tenths, hundredths, or thousandths • Use it in portrait or landscape on iPad, not just one way • Show only what you need — show or hide the inclinometer and extra readouts to keep the screen clean • Everything in the standard 3pMaster, on the device you bring to the start line IN YOUR LANGUAGE Fully localized in English, German, Spanish, French, Italian, and Dutch — built with real rally terminology, not machine translation. A CLEAR DRIVING DASHBOARD • Calm, readable layout with big numbers that read at a glance • Large in-drive buttons and dialogs, easy to use while moving • A clearer compass to guide your direction • Energy saving for longer trips PRECISE DISTANCE • Partial and total distance, in kilometers or miles • Adjust the odometer any time — type a new value or use the +/- buttons • Reverse: missed a turn? Drive back and the distance subtracts automatically • Pause when you need to stop the trail • Quick restart to begin the next section with a single tap • Choose 2 or 3 decimals STAY INFORMED, HANDS ON THE WHEEL • Voice announcements for current speed, partial and total distance, at your chosen frequency • Distance beep every "x" km/miles • Audio confirmation for the navigation buttons • Control everything hands-free with Flic and Flic 2 wireless buttons INCLINOMETER • Clear roll and pitch gauges, with your own photo behind them • Inclination alerts when slope passes your limit, or changes too suddenly TRACKS & MAPS • See your track in real time on the map • iCloud sync — record on one device, find your tracks on all of them • Automatic track names based on where you started and finished • Save tracks automatically or one by one, with your own names and notes • Export to GPX or KML • Turn any trip into a clean, great-looking map image — ready to share on social BUILT FOR THE WAY YOU DRIVE • Works with the internal GPS (iPhone and Cellular iPad) or external receivers (tested with Garmin GLO 2 and Dual XGPS150A) • Test GPS reception any time and set the accuracy threshold • Two-finger swipe and double-tap options to prevent accidental changes • Reorganized Settings — choose your announcement voice and coordinate format • In-app tutorial to get you started Need a feature, or hit a problem? We read every message — reach us at [email protected] or from within the app. Note: 3pMaster Pro needs a device with GPS. On a Wi-Fi-only iPad it requires an external GPS receiver. A data connection is only needed for maps. Continued GPS use in the background can decrease battery life. For regularity (TSD/CAST) rallying, roadbook navigation and open-road timing, see 3pRally.
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.