Echometer offers limited free starter plans for both its tools—Retrospectives and 1:1 Health Check Meetings—but with notable restrictions. For 1:1 meetings, the free plan allows a manager to run up to two 1:1 series with two people. For retrospectives, the free version lets one team run just one retro per month. Teams will quickly need to upgrade to access more functionality once the free 21 day trial is over.
TeamRetro offers a 30 day free trial with full features and no limitations. You can facilitate as many meetings and have multiple teams, retros and health checks.