go-catchup - Friendships are important to you, but sometimes life gets in the way!The go-catchup add on for Google Workspace™ reminds you to regularly catch up with a large group of friends - one friend at a time

Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Down To Lunch - Press one button to get lunch with friends

Zenly - Zenly is a GPS tracker to locate your friends in realtime.

PotluckHub - Simply plan your get-together

/Lunchbox - Coordinate lunch trips with colleagues and friends in Slack.