Navigation, Routing & Mileage

CoPilot vs. Appian vs. PC*Miler: How each software fits in your tech stack

Comparing Trimble CoPilot, PC*Miler and Appian? They're not competitors. Each one plays a different role, and we can help you find the exact piece your fleet is missing.

What each mapping tool actually does for your fleet

While these tools are all mapping software solutions, each one delivers unique value to a different part of your team. Here’s a quick overview:

PC*Miler: calculates exact, truck-legal miles, tolls and fuel tax info, factoring in height, weight and hazmat restrictions, so your back office knows the true cost and distance of every run.

Appian: optimizes total fleet resources to build the best multi-stop routes, schedules and sequences across every vehicle.

CoPilot: sits on the dashboard in the cab, giving turn-by-turn truck navigation, live traffic, weather alerts and route compliance to keep drivers safe, compliant and on track.

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Quick glance comparison

Mapping & Routing

Routing, mileage and mapping that drives the transportation industry

Industry standard back office mileage and route planning software
Generate commercial vehicle routes with precise mileages and drive times using the most current maps
Appropriately plan regulatory breaks at preferred stop locations
Obtain realistic ETAs with real-time and predictive traffic

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Mapping & Routing

Fleet-wide safety, efficiency and consistency

Empower your drivers with highly accurate, safe truck-legal navigation
Boost route compliance and measure driver performance
Maximize revenue and your bottom line with overall reduced fuel and operating costs
Enhance customer service and on-time deliveries with precise, dynamic ETAs

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Mapping & Routing

Optimize fleet performance, end-to-end

Automate route planning to optimize capacity and and gain a measurable competitive edge
Drive growth through strategic planning, route modeling and what-if analysis
Deliver superior service and solidify customer trust through on-time performance and proactive visibility
Unlock actionable insights with integrated data visualization and custom reporting

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Deep dive comparison

PC*Miler acts as the data foundation

It answers the question: what is the correct, compliant route and mileage for this specific vehicle?

PC*Miler is the routing engine that calculates truck-legal mileage and routing data — accounting for vehicle height, weight, axle count, HAZMAT restrictions and road-legal constraints that a standard mapping tool has no awareness of. PC*Miler is the industry-standard source of truth that commercial routing decisions are built on.

Appian enables fleet-wide routing and dispatch workflows

It answers the question: how do I plan, schedule and execute the most efficient routes across my entirefleet, every day?

Appian scales PC*Miler mapping accuracy up to the fleet level, turning individual truck-legal routes into an optimized routing and dispatch operation across an entire private fleet, carrier or 3PL network. It balances cost, time, and vehicle capacity to manage daily route optimization, real-time tracking, and strategic network design. From long-term planning down to daily driver workflows—including electronic proof of delivery and integrated commercial navigation —Appian manages the full operational cycle.

Trimble CoPilot helps direct in-cab driver execution

It answers the question: how does the driver actually navigate to execute this route safely and legally, mile by mile?

CoPilot leverages that same PC*Miler routing engine and puts it in front of the driver — delivering real-time, turn-by-turn, truck-legal navigation in the cab. CoPilot and PC*Miler aren't competitors; they're the same routing intelligence applied at two different points in the operation, planning and navigation execution. Learn more about keeping drivers productive and engaged by creating a better driver experience.

PC*Miler: The data foundation

Appian: Fleet-wide routing and dispatch

CoPilot: In-cab driver execution

PC*Miler: Route planners, back-office teams, developers integrating routing data

Appian: Fleet managers, dispatchers, operations teams managing a fleet or network

CoPilot: Drivers, in the cab

PC*Miler: Industry-standard truck-legal mapping and routing engine

Appian: PC*Miler mapping accuracy, applied at the fleet level

CoPilot: The same PC*Miler routing engine, delivered in real time

PC*Miler: Truck-legal mileage and routing data

Appian: Optimized, dispatched route planning across the fleet

CoPilot: Turn-by-turn, truck-legal commercial navigation

PC*Miler:

Truck-legal routing (height, weight, axle count, HAZMAT)
Precise mileage and drive-time calculation
Developer APIs & Routing SDKs
IFTA fuel tax reporting by state mileage
Bulk mileage, toll and drive-time processing (CSV/Excel)
Multi-stop resequencing for optimal driving order
Back-office mileage and route planning (source of truth)

Appian:

Truck-legal routing (height, weight, axle count, HAZMAT)
Precise mileage and drive-time calculation
Enterprise & TMS API Integration integration
Fleet-wide daily route optimization (cost, time, capacity)
Dispatch and real-time planned-vs-actual visibility
Strategic network design and fixed-route planning
Electronic proof of delivery (ePOD)
Integrated commercial navigation

CoPilot:

Truck-legal routing (height, weight, axle count, HAZMAT)
Precise mileage and drive-time calculation
In-cab app & SDK integration
Real-time, turn-by-turn in-cab navigation
Traffic and hyperlocal weather alerts along the planned route
Live and predictive truck parking availability
Offline map access

PC*Miler acts as the data foundation

It answers the question: what is the correct, compliant route and mileage for this specific vehicle?

Appian enables fleet-wide routing and dispatch workflows

It answers the question: how do I plan, schedule and execute the most efficient routes across my entirefleet, every day?

Trimble CoPilot helps direct in-cab driver execution

It answers the question: how does the driver actually navigate to execute this route safely and legally, mile by mile?

PC*Miler: The data foundation

Appian: Fleet-wide routing and dispatch

CoPilot: In-cab driver execution

PC*Miler: Route planners, back-office teams, developers integrating routing data

Appian: Fleet managers, dispatchers, operations teams managing a fleet or network

CoPilot: Drivers, in the cab

PC*Miler: Industry-standard truck-legal mapping and routing engine

Appian: PC*Miler mapping accuracy, applied at the fleet level

CoPilot: The same PC*Miler routing engine, delivered in real time

PC*Miler: Truck-legal mileage and routing data

Appian: Optimized, dispatched route planning across the fleet

CoPilot: Turn-by-turn, truck-legal commercial navigation

PC*Miler:

Truck-legal routing (height, weight, axle count, HAZMAT)
Precise mileage and drive-time calculation
Developer APIs & Routing SDKs
IFTA fuel tax reporting by state mileage
Bulk mileage, toll and drive-time processing (CSV/Excel)
Multi-stop resequencing for optimal driving order
Back-office mileage and route planning (source of truth)

Appian:

Truck-legal routing (height, weight, axle count, HAZMAT)
Precise mileage and drive-time calculation
Enterprise & TMS API Integration integration
Fleet-wide daily route optimization (cost, time, capacity)
Dispatch and real-time planned-vs-actual visibility
Strategic network design and fixed-route planning
Electronic proof of delivery (ePOD)
Integrated commercial navigation

CoPilot:

Truck-legal routing (height, weight, axle count, HAZMAT)
Precise mileage and drive-time calculation
In-cab app & SDK integration
Real-time, turn-by-turn in-cab navigation
Traffic and hyperlocal weather alerts along the planned route
Live and predictive truck parking availability
Offline map access

Solve your route planning bottlenecks before they cost your fleet

We understand the complexities fleet managers face every day. Routing inefficiencies, driver detention, and scheduling delays cost the trucking industry $15.1 billion annually, split between lost productivity and direct expenses. The operational stakes are too high to rely on guesswork.

Our mapping and routing software helps fleet leaders solve four critical operational hurdles:

Evolving TechnologyMap data, traffic models and AI trip planning change constantly. A tool that was "good enough" last year quietly loses you money today.
Vendor OverwhelmSifting through dozens of telematics and software vendors to find the exact match for your cargo, equipment, and compliance profile is exhausting.
Hidden Operational RisksBasic GPS answers, "Where are my trucks?" but fails to answer, "Does this route avoid low-clearance bridges, weight-restricted roads and hazmat hazards?"
Complex Data OverloadModern routing software relies on real-time traffic, Hours of Service (HOS) data, and predictive analytics. You need software that translates complex data into clear, actionable driver dispatches.

Which fleet navigation and routing software tool do you actually need? Ask these three questions.

Instead of "which one should I choose," fleet managers get further asking:

Is your routing and mileage data truck-legal and accurate? PC*Miler can help answer this question.
Do you need to build optimal routes across your entire fleet, or are you still planning daily schedules manually? Appian can take on these tasks.
Are your drivers actually getting the back-office navigation plan in real time, in the cab, without falling back on a consumer GPS app? CoPilot will keep your drivers on track.

Most fleets have a gap in one or two of these three layers, not generally all of them. Identifying which one is the actual first step, not comparing three mapping tools that are designed to work together, not against each other.

Ready to close the gap in your fleet routing and navigation stack?

Learn more about CoPilot, Appian and PC*Miler or connect with an expert on our team to explore how our mapping solutions can empower your fleet.