If you're going to make an idle game like this, you at least be able to further increase monetary gain from each run by say, being able to open each app and play a small minigame or play around with a small gadget depending on the apps.
Like this but only thing I'd like to have is the screen for when you get an achievement not being smack dab in the middle of the screen. Can you make it smaller and maybe in one of the corners or something?
Absolutely. There are plans to change the annoying achievement popup to something similar to what you mentioned soon.