Rabbi P You need many changes to be totally nusach ari. I.e. אל תירא etc.
14 meg is too big! I can't load the updates! Not yet up to palm siddur. How about adding korbonos?
Shlomo Great siddur . The nikkudim do align properly now using android version 4.2 + for every font
Great app OKtm apps are great, thank you. It is not a free app but you won't regret buying it!
The nusach is not entirely according to nusach Arizal
Links in Tools
The ArtScroll Scottenstein Talmud, Smart Siddur, Kitzur , Seforim and eBooks