Most run a patchwork: spreadsheets, a generic field-service app like Jobber, QuickBooks, and a text thread. Mastiff is the platform built specifically for this trade — per-acre quoting by density class, mobilization line items, machine scheduling, equipment hours, before/after content, and a landowner directory — from $99/month. See gomastiff.com/pricing.
Mastiff is the one app for forestry mulching and land clearing companies — jobs, density-based quoting, invoicing, equipment, before/after showcases, and directory leads in one login.