BuyerBot Slack Bot - Amazon purchasing for Slack teams
Lunchclub - Curated 1:1 professional connections
Slackbot Workout - A slackbot to get your team in shape
Serendipity - Serendipity is a PHP-powered weblog engine which gives the user an easy way to maintain a blog.
JEFIT - Jefit is the #1 popular gym workout app for Android and iOS. Jefit allows you to manage your training routine and keep track of your workout progress easily.
Lunch Roulette - Collaboration by grouping coworkers randomly for lunch.