Hello everyone!
I need your opinion on my recently developed app for 3D-printing costs calculations with the use of such parameters as filament type/diameter, price markup, etc. It's free (of course) and without any advertising:

https://play.google.com/store/apps/d...ttomoney&hl=en

Maybe it needs to be improved in some way? What features or options would you like to see? Please give some advices!