SEPTEMBER 13, 2013 UPDATE
In addition to the original post, I wanted to keep adding as I find other apps I really enjoy.
The number one Android chess app I use is Chess.Com's app. The app is stable; graphically nice and fairly easy to use. The biggest thing I like about the app (and Chess.Com in general) is that is has pretty much everything I want: live play, correspondence chess, problems, videos, articles and all that. The features I use the most are the live play and the correspondence. I love the CC because I get an immediate notification when my opponent moves. I pull my notification bar down, tap on the notification and then the board comes up and shows me the move my opponent made. I can then open the analysis board and start playing with the position. When I'm ready, I make my move. The last thing I have to say about this is: goodbye RedHotPawn/Chess@Work (as soon as I finish my current games at that site).
The live version is stable as well. When I'm at work and need to take a break, I go to the break room, pull up the app and play a few 5 3 games. The interface is nice, clean, easy to use. At night, after the kids are in bed, I get my tablet out and play 30 5 games. Again, the biggest thing I'm happy about maybe isn't so much the app as it is the chess.com community - I can always find a game on chess.com; whereas I may not always find a game on FICS. With this app, I think my FICS days may be over.
Chess Visualization Trainer
The other app I use almost on a daily basis is Chess Visualization Trainer. I mainly use this to memorize the colors of the squares. I has other functions, but I usually only use one-square color. The other options are two squares diagonal, two squares knights move, rooks and queens mate, bishops and knights mate, mate in one and mate in two.
The last of the three chess apps I'm using these days is Analyze This - Chess (Free). I needed a plain 'ol board to play the Pandolfini solitaire chess games in the Chess Life magazine each month. It does the job and the interface is clean - nuff said.
SEPTEMBER 22, 2012 (ORIGINAL POST)
A few months ago, I upgraded from an HTC Incredible to a new (restocked) Samsung Galaxy Nexus. The Nexus has a much bigger screen than my Incredible. As such, playing chess on the Incredible was a bit more difficult than playing on the Nexus.
So now that I had a bit bigger screen, I started really looking for a good chess app to play - especially one that would allow me to connect to FICS.
With that said, here's a list of the chess apps I have either used before or I have now and regularly use.
Chess Free - by AI Factory Limited
Chess Free is the first app that pops up on a search at Google play. This was the app I had on my Incredible. It is a good computer app - good graphics; lets you export games to a .pgn file. I imagine most people marginally interested in chess would download this app; and rightfully so.
Chess for Android by Aart Bik
Chess for Android is average. If you just want a chess computer app, just go for Chess Free above. Chess for Android is fairly popular, but once I found Chess Free, I stopped using Chess for Android. I did not install this on my Nexus.
Mobialia Chess allows you to log on to FICS. I remember having issues logging onto FICS when I installed this on my Incredible. I just installed this app on my Nexus and tried logging into FICS again ... same issue - it just sits there trying to authenticate me - not impressed.
Chess Lite by Odesys
Chess Lite is another FICS-connectable app. If I recall, it seems to work, but the graphics weren't all that great.
Yafi Internet Chess
Yafi is also a good client. I use this chess app the most - especially when I have time to kill and want to play a quick 5 0 game. It appears the developer is continuing to work on this app and I think this app has the best potential of all the FICS-related apps.
Tactic Trainer by Core Games
I love to do tactics. I normally get my tactics fix on ChessTempo. I can do tactics on CT from my Nexus, but since there is no app for CT, I have to use the browser interface ... I then have to zoom in and I usually can't get the zoom quite right, causes fat-fingering moves/mistakes ... anyway, I did find an app dedicated exclusively to chess tactics. Tactic Trainer has 20,000 problems! By comparison, CT has just over 54,000 problems - obviously not as many, but at 20K, that's still quite a lot. It will track your rating progress and the interface is really good. I wish Richard at CT would hook up with the developer of this app and collaborate on a ChessTempo app.
I just ordered a Samsung Galaxy Tab 2 (10.1) this week with a small bonus I received at work. The Tab 2 should arrive on Thursday. I'm sure I'll find lots of different and neat uses for the Tab 2, but the biggest reason I wanted it was so that I could play chess anywhere - only on a bigger screen than my Nexus. I'm looking forward to doing a lot more tactics at CT on the Tab 2. I'll also be able to use all the above apps and play chess on a bigger mobile display. I'm sure I'll start playing more 5 0 games at ChessCube than on Yafi.
If you're an Android / Google user, what are your favorite chess-related apps?