A traditional board game from Madagascar (which was recently featured in Assassin's Creed III (*)). Unusual features include the ability to capture a line of opponents either by approaching them or by withdrawing from them. Supports two-player play. Includes a leaderboard and achievements. Supports Samsung multiwindow.
Includes a colorblind mode (see the checkbox under Settings). Note that there is a limitation: to switch in or out of colorblind mode, you have to rotate the device, or restart the app.
(Common misspellings: Fanarona, Fanorana.)
This is the free version; there are no ads. The paid version is still available if you want to contribute, but includes no extra features.
Fanorona collects statistics on your wins for the leaderboard. However, these statistics are not associated with your real identity; a random identifier is generated for each user. Of course, they are associated with the name you choose in settings; but you are free to use a pseudonym there, or give no name and default to anonymous. In addition, the leaderboard logs your IP address when you win a game. I have been unable to get Google App Engine to stop this logging, but I have set it to discard the log after one day, and I promise not to use the IP address for any purpose, or to disclose it to any third party.
(*) Assassin's Creed III is a trademark of Ubisoft, to which I have no connection.
2.5.5 adds minor updates for Android 6.0 Marshmallow: it should take advantage of the standard Google backup service, so that your leaderboard identity will persist if you restore a backup on a new device. (I don't have a spare device to test this with, though.)
2.5 adds achievements.
By popular demand, 2.4 adds the ability to turn off the requirement to keep making captures as long as you're able.
2.2.0 adds a colorblind mode.