Calc Pro HD - Calculator

I am using the trial version to 'test drive' this calculator. As a decades die-hard HP / RPN calculator user, I was especially interested in the RPN calculator mode. Alas, the ONLY one function that doesn't work well is the display mode for RPN. Stack and numeric display is all out of whack. I wrote directly to the publisher, but have yet to receive a response. If they can fix this problem, this might be a 5 star app. Using the lastest update for Windows 10 on a very new computer.

Very nice calculator. Improves on the standard windows calculator by having financial calcs. Launch time could be improved slightly... it seems when I need to use the calculator I need it quickly.

Complex and powerful calculator app. For the people that gave this app a 1 for not knowing how to "math"; I despise you.

In Windows 10 mobile, it is the best calculator app. For an app, it is expensive but more than worth the cost. I have been using Calc Pro in one form or other for about 20 years. I had in Win 7 and in WP 8 on my Nokia 920. The WM 10 version is superb!

Works extremely well for my needs and runs better on my Windows Phone than on my Android phone. I've been using this app on all of my devices for 2-3 years, now and prefer it to all other softcalc apps.

Has plenty of additional features and calcs. Like that you can customize the look, but would like to see a few more options for "dark/black" themes.