AtTrack offers Free Trial, but Billable does not.
AtTrack is designed for Freelancers, Medium Business and Small Business.
Billable is designed for Individuals, Freelancers and Small Business.
Pricing for AtTrack Starts at $3/User/Month whereas for Billable Starts at $8.40/Month.
Some top alternatives to AtTrack includes Hubstaff, Clockify, TimeTrack, Time bot, Timebase, Time Track Bill, Timesheet, Time Analytics, Billable and Tack.
Some top alternatives to Billable includes TimeTracker App, Tick, TimeTrack, TimeQ, Timebase, Time Track Bill, Timesheet, Time Analytics, AtTrack and Timet.