It's nice to see Ape Chess improving regularly toward a better competition versus favorite GUI's like Chess for Android and Droidfish.
Once you get familiar with the menus, i guess you can even prefer Ape to above favorites unless you are directly concerned with engine features. Droidfish is very stable, CfA is a must for tourneys and Ape is beautiful!
The new version is Beta 10.1 and it features a very recent build of Arasan, v19.0.1 as well as Cheng4 0.36c and Scorpio 2.7.7. While we've got Cheng 4.38 and Scorpio 2.7.7 by Jim Ablett already, the new Arasan is appealing. Another important detail is that Ape provides several engine builds for different architectures unlike JA builds.
You can GET Acid Ape Chess free from Google Play.
Regarding the bundled engines, stay tuned for dedicated posts to follow this one.