Zulip - Chat for distributed teams. Zulip combines the immediacy of real-time chat with an email threading model. With Zulip, you can catch up on important conversations while ignoring irrelevant ones.
Domcomp - No-nonsense domain price comparisons, updated daily
Kwayet - Team chat & collaboration app, a simple way to Slack
Savings.com - Compare prices at local stores & discover the best deals
Flow - Stop managing projects from your inbox.
PriceCute - Keep up with your competition's pricing on Amazon