Track your walk, run or ride!
This app is an Open Source work in progress by Appcelerator Developer Evangelist Fokke Zandbergen. He plans to cycle 400km through Rwanda in June 2016 and raise €10.000 for the work of Compassion: Releasing children from poverty in Jesus name.
Source: https://github.com/FokkeZB/Tracker
Information: http://fokkezb.nl/rwanda
Caution: Continued use of GPS running in the background can dramatically decrease battery life.