DNScapy - DNScapy is a DNS tunneling tool. The code is very light and written in Python.
FareUpThere - Earn rewards for your feedback on flights
Map Pod - Quick, easy real-time location sharing for iOS
Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
Blokada - The best ad blocker for Android. Free and open source.
Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.