HiPER Scientific Calculator

I’ve tried tens of calculators on both the Google App Store and the Apple App Store. This calculator remains the best. I’ve been using it for many years now, and strayed from it to use a few others, but I keep coming back to this one.

I have several HP calculators and this emulation is excellent, and accurate. Operates just like original HP calculators, includes Reverse Polish Notation, Expressions, and complete repertoire of scientific functions. It is my go to when I do not have my original HP calculator handy. Highly recommend this app.

Good app. However, I noticed you said everything on the premium version is available on the free version. Only no ads for $7.99 I would suggest you add a few capabilities on the paid version not available on the free version just to make the paid version more attractive. That way people who pay get more features while you get more financial reward for your app.