Vicinity - High Quality Ambient Background Sounds in your macOS MenuBar
Haveyoubeenhere - The social media app for travelers
Capitol Bells - Gamified political social network to crowd-lobby Congress
sup - The first creep-free way to see nearby friends
Instaround - A simple app to find Instagram photos and people around you.
NeoMutt - NeoMutt is a command-line mail reader. It's a version of https://alternativeto.