A lead tech wears two hats: you do your own field work like any tech, and you run the crew’s day. You see the whole schedule, not just your own, and you can move jobs around when plans change, all from your phone. Payroll, customers and the money side stay with the office.
A regular tech only sees their own jobs. A lead sees the whole crew’s schedule and can reassign work, so when the owner is on a job or off for the day, the board still has a driver. You keep everything a tech has (record invoices by voice, clock in, snap receipts, see your own pay) and gain the crew view on top.

Everything in the Tech’s Guide is yours too: clock in from Home, run your route, speak your invoices and estimates into the mic, snap before/after photos and receipts, and watch your pay grow on My Pay. Being a lead just adds the crew view, it never takes the field tools away.