Only an unblued browser!

I had understood that this app was made for using the iPad at night, but no, it is only a new browser that opens unblued.
Had I known before, I had not bought this app, because I am not browsing before going to sleep, but going through different apps (calendar, to do lists...) which I had wanted with an unblued light so they would not keep me awake.
It is a start, but why not change the light of the device, as f.lux does? I am using it on my computer and searching for something like that.

Skilja about Unblue, v1.0.8