Yes, both GitLab and DeskTime offer a Free Trial.
GitLab is designed for Large Enterprises, Medium Business and Small Business.
DeskTime is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for GitLab Starts at $19/User/Month whereas for DeskTime Starts at $87.08/Month when Billed Yearly.
Some top alternatives to GitLab includes Codeship, Semaphore, CircleCI, Bamboo, AutoRABIT CI, Buildkite, CloudBees Core, Travis CI and Bitbucket.
Some top alternatives to DeskTime includes clockodo, Time Doctor, TimeTracker App, Hubstaff, TrackingTime, Clockify, TimeTrack, Time Track Bill, Timesheet and Time Analytics.