Hi guys!
For a long time, I was looking for a calculator without annoying ads, fully functions and has great interface, but this one didn't show up. So, I decided to develop my own app for several months.
I'd been working on this project for a long time, and finally, I released it a couple days ago. It is called: CalcPP.
Here is some of its screenshot:
You can get it from here (just copy and paste & go):
play.google.com/store/apps/details?id=com.thgdev.calc
I hope you will like it, and if so, please leave your feedback, so I can improve it further. Thank you all and have a good day!