Murphy rules again...
Each time i'm getting very close to release an update to the Rapidroid ranking, the probability of an engine update or new release goes to maximum.
Here it happened again but i'm not gonna feel sad at all.
I think Fridolin was a good choice as a newcomer to Android engine fleet. It's an open source engine written by Christian Sommerfeld, compiled for Android by Jim Ablett.
It played recently in WCCC 2015 in Leiden. Therefore, it's maintained and promoted.
As i didn't test it yet in any of my devices, i can just hope the compile works flawlessy in tournament configurations because giving up an engine which played in WCCC and excluding it from Rapidroid unwillingly will not make me happy.
ELO rating is ~2500 in CCRL for PC version, Thus, Android compile may be ~2350 roughly.
Download Fridolin: HERE