Wren - Offset your carbon footprint by saving rainforests
Countdown Screensaver - A Mac screensaver for counting down to a date 🖥🕐
YAYZY - Track the carbon footprint of each purchase in real-time
Timetaco - Create your own countdowns, as easy as 3, 2, 1
Klima - Go carbon neutral
Yonks - Day counter app for iOS & Android.