Hello, I think this nice app deserves to have a thread.
It has been developped by a young man from China, and I first heard about it on Reddit (cbaduk)
On a recent phone or tablet, the installation is easy, and the level is astounding...
On my phone, at its absolute lowest setting, it's already 2-3 Dan, at mid-level (30 or 40 sec. per move), it's around 4-5 Dan (determined by playing against CSDL)
Obviously, depending on your phone or tablet, AQ's strength could be higher or lower...
V.1.0.7.2 is in English (translation by Bor-ka, you can contact him at Reddit) :
DOWNLOAD V.1.0.7.2 HEREV1.0.9.1 is nicer still. If I understood correctly, it should be in English if your system is in English, but in my case, it's in Chinese (not very important, because the app is very intuitive, and moreover, Bor-ka will probably translate it soon)
DOWNLOAD V1.0.9.1 HEREYou can change the style of the stones and the style of the board , there's a nice win% screen, another screen with precise usage of time, and directly under the board, you can see the better moves considered by AQ. You can see the false eyes, the moyos, a heatmap, you can save or open games, and you can even see several graphic variations. You can play against it, or make it play against itself, with different levels and/or handicap.
And... the app is free
I don't know the developper or the translator, but I hope you'll enjoy this as much as I do !