Alternatives. What could replace Time Doctor?
Other direct substitutes
ClockifyTime-tracking tool with unlimited free users and paid tiers adding invoicing, scheduling, and admin controls.
ClockSharkGPS timesheets for field crews (construction, landscaping), with location tracking and base-plus-per-user billing.
TimeCampTimeCamp is time-tracking software with a free plan for unlimited users and projects, and paid plans from $3.99/user/month for billing and attendance.