Diezl · Solo design and build

Take the load or pass

Designed, built and shipped alone, from the first interview to the App Store.

Learn more at diezlapp.com
Diezl load profitability screen

A profitability calculator that gives owner-operators a defensible verdict, most of the time in under a minute.

Product
Diezl
My role
Designer & Builder
Impact
406 installs
901 loads evaluated
61% resolved in under 1 min

Context

Owner-operators pick loads by rate per mile, which ignores deadhead, fuel, terrain and where the truck ends up. A load that looks fine on the rate confirmation can quietly lose money.

Problem

The decision happens on a phone call, with a broker waiting. The existing options were spreadsheets or fleet software built for dispatchers, and neither survives that moment.

Approach

I scoped this to one user and one decision on purpose. I tested the cost model against real lanes with a DAT researcher, then cut anything that didn't help someone say yes or no faster.

Solution

Natural language input turns a load message into a full set of inputs, no typing required. The result leads with clear profit result and detailed cost breakdown that leverages user inputs or smart defaults based on real trucking research. Destination Outlook rates where the truck ends up, so a good rate into a dead market doesn't fool anyone.

Impact

406
installs
901
loads evaluated
61%
resolved in under 1 minute

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