Indeed. I just installed the official one and won't be using it. Ads, small numbers. I use one from estoty entertainment lab which is ad free afaict.
This is the one I have as well and there used to be ads when you lost IIRC.
I tried Gabriele's but it's indeed (sadly) inferior, by the size of the board and the input lag (on my Nexus 4).
I think that this is a big missed opportunity for him (even if he had enough "success" from the original game alone)