On Second Thought

On Second Thought is a messaging app that enables its users to undo and edit messages before they get to the recipient's phone. The job it does: replacing internal email with channels and direct messages.

Who is it for? Mostly every team. They also list Android, B2C, Messaging, Mobile and SMS, so expect those to show up in the feature set. As a very small product team themselves (1 to 10 people), they tend to serve customers of a similar scale best. Small vendors mean quick answers and real influence on the roadmap, but check who covers support when someone is out.

On Second Thought is based in Cambridge, Massachusetts and around since 2014. You can read more at onsecondthought.co.

Our checklist for this category: search, retention policies, and external guest access. Ask for a trial on your own data, not a canned demo.

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