The main idea is simplicity in presenting the data so I think adding more additions would be a bad thing.
I hope that you will work on the speed of response and more sources for the price.

Adding charts would be very nice, especially if it was similar to Khaled's way of working.

A little note: Putting a close bottom of "Bitcoin price on this day: September 4" below makes it useless, make a double click to close the menu.