I read through some of the content on the github and it seems like good content. I think I'll brush off a dead android that I have at home to take full advantage of the app.
Thanks, we made kept it backwards compatible to Android 2.3.6 until about two weeks ago - due to wanting to ensure people in the developing world on cheaper phones could keep using it.
We've since depreciated that to 3.0 but if your looking for an older version, feel free to drop a mail and we can make it available again. Note to self, make all older versions available on Github