Atto is a GPS time tracking and timesheet app for field service businesses, construction crews, landscapers, and trade contractors that automatically tracks employee work hours, locations, and projects from a phone in the background. Marketed as GPS time tracking software for field workers, Atto combines automatic GPS clock-in and clock-out, geofenced job sites, real-time crew location maps, timesheet approval workflows, project and task tracking, automated overtime and break calculations, photo and signature attachments, payroll exports to QuickBooks, ADP, Gusto, and Sage, and dedicated iOS and Android apps. Atto is a strong fit for construction supervisors verifying jobsite hours, landscaping owners managing multi-crew schedules, and trade contractors automating biweekly payroll without paper timesheets.