Built by a Yard Driver

The Only Yard Jockey App Built by a Yard Driver

Yard Mule Pro is a voice-first yard management app designed for the way yard jockeys actually work — gloves on, moving fast, eyes on mirrors. Speak a trailer number, the yard map updates live. YardSafe locks the screen when you're moving. No radio. No typing. No distraction.

Read the FAQ →
Voice-First YardSafe Motion Lock Gloves-Friendly Any Phone No App Store

A yard jockey — also called a yard driver, hostler operator, spotter, or yard dog — is a commercial driver who operates a terminal tractor to move trailers within a distribution yard, warehouse, or freight terminal. Unlike over-the-road drivers, yard jockeys work within a fixed yard, executing high-precision backing maneuvers to position trailers at dock doors.

In a busy yard, a yard jockey can execute a trailer move every 2 to 3 minutes — hundreds of moves per shift. The role demands total situational awareness: watching mirrors, communicating trailer locations, and responding to dispatcher requests in real time. A tool that adds cognitive load is worse than no tool at all.

Yard Mule Pro was designed from the start to reduce cognitive load, not add to it. Voice input means drivers never take their eyes off what matters. YardSafe means the screen locks itself when the truck is moving. The dispatcher sees the yard without making a single radio call.

Built for the Job.
Not the Demo.

Every feature in Yard Mule Pro was designed around the physical reality of working in a yard — not a conference room.

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Gloves On

Voice input handles trailer numbers. No typing with cold, wet, or greasy gloves. Tap targets are large enough for gloved hands when you do need to touch the screen.

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Third Shift Ready

Full dark mode interface designed for 2am conditions. Doesn't blast your eyes when you check a trailer status in a dark yard.

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Offline Mode

Dead zone in the back corner of the yard? The app holds local state and syncs when signal returns. Operations don't stop for network gaps.

Screen Locks
When You Move.

YardSafe is a motion-sensing screen lock built into Yard Mule Pro. When the terminal tractor is moving, the screen locks. When you stop, it unlocks. No temptation. No distraction. Eyes where they belong.

Safety Principle

A yard driver should never choose between watching their mirrors and reading a screen. YardSafe removes that choice entirely — the screen is only active when the truck is stopped.

Motion detection via phone gyroscope. No hardware required. YardSafe uses the phone's built-in motion sensor to detect movement — nothing to install on the truck.
Android: starts automatically. When a driver logs in with the driver role on Android, YardSafe starts silently in the background. No setup required.
iOS: one-time permission tap. iOS requires explicit user permission for motion sensors. Drivers tap once on first login — then it's automatic every session.
Calibration-aware. YardSafe calibrates to yard conditions. Slow yard-speed movement is handled differently from stationary jitter — fewer false locks, better real-world reliability.

Your Yard Drivers Deserve Better Than a Radio

Book a free 15-minute demo. We'll show you exactly what Yard Mule Pro looks like from the driver seat — and from the dispatcher's screen.

Also on Yard Mule Pro: Founding Beta → Yard Management System Trailer Tracking Software No-Hardware YMS 3PL Yard Management FAQ