Two Stockfish OEX installers came from Javiolo in the beginning of April. He deserves the best of the appreciations for porting the strongest engine to Android regularly. Thanks again.
WHAT'S NEW (1-Apr-2017 & 4-Apr-2017):
new release Stockfish 8 20170326 Open Exchange protocol
old release Stockfish 8 20170227
this chess engine app need a chess board, see app description
Now, this app has a layout
Other Stockfish derivatives
for more engines see Chess Engines app
You can download Stockfish OEX installer PIE for modern devices from GOOGLE PLAY.
You can download Stockfish OEX installer noPIE for old devices from GOOGLE PLAY.
You can also install these builds manually from this ARCHIVE, in case you don't need OEX feature or you wish to keep backups available after a future update of this app.
In case of trouble downloading from your PC, use your mobile device or refer to THIS POST.