Parabol

Parabol provides a platform for conducting effective and guided retrospective and check-in meetings for your team, resulting in increased transparency, accountability, and autonomy. Each meeting on Parabol updates a team task system that builds a feedback loop for smoother flow and execution. Parabol has been meticulously engineered to feel modern and interactive, similar to a Google Doc. It is ideal for remote teams and works seamlessly.
Parabol integrates with Slack to send team notifications when a meeting begins and ends. Once a meeting is over, the summary is posted to the channel, keeping attendees who missed it in the loop.Parabol is available for free for two teams. It does not use the email you have supplied to Slack.