TripsGuard - COVID19 travel restrictions worldwide
DNScapy - DNScapy is a DNS tunneling tool. The code is very light and written in Python.
Covid-19 Controls - Lockdown measures and tourists restrictions around the world
Iodine - iodine is a free (ISC licensed) tunnel application to forward IPv4 traffic through DNS servers (IP over DNS). Works on Linux, FreeBSD, NetBSD, OpenBSD and Mac OS X.
Red Eye Escapes by Molekule - Find flights to pollen-free destinations
Jiyo - Your personal well-being companion