Will there be a demo version ?

I wasn't planning on adding one tbh, you can play the Android version to get a feel for what it's like, then just imagine that but much much faster :)

But i don't have an android phone :(

Indeed it'd be nice for a Version like the one on android- to be ported to PC, so people can get a feel for it- if they do not have an android phone. But that's just my thought on the matter.

Yeah these are good points :) I don't think ads are a good way to monetize on the PC (are there any examples of this?) - but I could make something like a good old-fashioned time / feature limited demo that people could use to try it out