Is it imposible to downloade snapchat on ubuntu touch? I'm wondering if I should download ubuntu touch on my nexus 4 but if is not possible to download the snapchat from the softwear center, i think I will not.
You can not, the developer has made no move to make a Ubuntu Touch application, and probably won't for a long time (if ever). Though if you are asking these kinds of questions, I don't think Ubuntu Touch is for you, it is very raw and not really ready for a consumer daily usage, more for developers who want to make applications. I disrecommend you flash Ubuntu Touch to your device until it has a stable consumer version.