There's a new version but we don't know what are the changes as the description remained the same.
WHAT'S NEW (28-Apr-2017):
Version 2 : *** Major update ***
* 24 Engine levels now (including easier starter levels),
* Save games, and share PGNs,
* UI modernisation,
* Improved sound effects,
* Swipe games to delete them.
Rival Chess can be downloaded from GOOGLE PLAY.