I love it I love this calculator (Android ver). I've used it for work running programs in the twinkling of an eye where my physical 35s takes upto 45 seconds. I've been an hp fan since 1980 and now wish I'd got a 42s. Planning to get an iphone6 so hope it works as well on that. App works well on my Android phone but on Android tablet, in full screen, I cannot get back to preferrences. Little lines at bottom of screen are missing. Not a problem for now, could be later. Now have iPhone 6S and it works fine. Thank you Thomas O.

It's like having the real thing again. My heart was broken when my 42S got stolen a few years ago. Now I use the Android and the desktop app on a daily basis and it's like the good old times all over again. Where do I donate!?

I use it everyday I used an actual 42s all through college as an engineering student. This app is fantastic because it improves the functionality of an already great calculator. I'm very grateful to the developer for putting all the effort he has into making this available to the public. I take this app with me everywhere I go on my phone and Nexus 7 tablet. Thank You!!

Five Stars Use it every day. Suggest adding screenshots of available skins applied to show how sharp it can look

Use it all the time on computer and phone. And have contributed applets to site

Great app Works beautifully like the original which I own.