Marc Uniacke, author of Hiarcs, was so kind to reply to an email of mine, saying that there will be an Android version of Hiarcs, but that it is
"months away", since currently he is too busy already as that he could prioritize the project.
Nice news.
I will wait.
Also, Stefan Mayer-Kahlen, author or Shredder, replied to me, saying that in one of the coming updates to Shredder there will be a landscape mode for the interface (like already implemented for iOS).
I assume there will be one or two more additions to the interface as well, classification of played openings, namely.
Add these two notes to the also already existing ChessGenius for Android, and chess is well on Android! Plus that there are many other, less superior but still competent chess applications for Android as well.