3pMaster: Tripmaster Roadbook

A precise GPS tripmaster built for serious off-road, overland and rally driving — measure every meter, follow your roadbook, and keep your eyes on the trail. Trusted by off-roaders, overlanders and ralliers since 2013.

3pMaster turns your iPhone into a dedicated odometer. Track partial and total distance, follow your paper or printed roadbook, and let the app call out the numbers so you can focus on driving.

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 clear compass you can pin to the dashboard
• 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
• Calibrate once: drive a known stretch, enter the official distance, and every distance is corrected from then on
• Reverse: missed a turn? Drive back and the distance subtracts automatically
• Pause when you need to stop the trail
• Quick reset 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 a built-in vehicle illustration, a silhouette or your own photo
• 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 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 support@3pmaster.com or from within the app.

Note: 3pMaster needs an iPhone with GPS. A data connection is only needed for maps. Continued GPS use in the background can decrease battery life.

Looking for iPad support and on-screen timers? See 3pMaster Pro, the universal version. For regularity (TSD/CAST) rallying, roadbook navigation and open-road timing, see 3pRally.