Yes, we do offer a free plan. Here are some limitations that apply to a company on the free plan:

User Limit: You can have a maximum of 3 users added to your TestCollab account.

Test Cases and Test Runs: A maximum of 200 test cases and 300 test runs are allowed at any point in time. These limits do not reset monthly; they are overall limits.

Integration Features: Integration with Jira as a defects manager is included in the free plan.

Activity logs: You can see activites' log for a maximum of last 7 days. ​