Smartsheet offers Free Trial, but Billable does not.
Billable is designed for Individuals, Freelancers and Small Business.
Smartsheet is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Billable Starts at $8.40/Month whereas for Smartsheet Starts at $9/month when yearly.
Some top alternatives to Billable includes Connecteam, Smartsheet, TimeTracker App, Tick, TimeTrack, TimeQ, Timebase, Time Track Bill, Timesheet, Time Analytics, AtTrack and Timet.
Some top alternatives to Smartsheet includes Miro, Process Street, Wrike, Notion, Jira, Microsoft PPM, Trello, TeamGantt, monday.com, Asana, Teamwork, ProjectManager.com, Microsoft Project and Airtable.