Free42

Thank you for reviving this wonderful calculator. I used it a long time ago. Using the HP 42S again makes me younger. It’s like I’m living a resurrection. N.B. The developer was kind enough to tell me how to find the original instructions concerning the HP 42S. His availability would deserve him a 6th star.

I can‘t believe I stumbled over this great app when looking for a calculator! It‘s the calculator I have myself which I love soooo much due to it‘s RPN logic! Many thanks to the developer!

With a powerful and extremely polished HP 42s emulator at its core, the app is a remarkable calculator. You can expect accurate and reliable results from all functions. The only point of criticism would be the default skin, which is not to the same standard as the rest of the app. It can easily be changed by the user.

Perfekt umgesetzt!

I use it daily in my engineering job. Since I use it so frequently the only thing I really miss now is a widget for the lock screen in order to access the app more quickly. (Or to implement the hooks so that it can be added to the “Launcher app”).

Would be a cool App, but not being able to switch off sounds is a no-go. „Picture“ of 42s is fuzzy.

Just the perfect companion for HP fans on the iPhone. Thx for all the great work!

This calculator is excellent. It‘s properly and carefully crafted and it‘s free of charge and of ads. Many thanks to the developer for his great commitment Dieser Rechner ist der absolute Hammer. Sehr sauber und sorgfältig gemacht und erst noch kostenlos und werbefrei. Hier steckt grosses Engagement dahinter. Vielen Dank an den Entwickler.

Thanks for the great work. I can not live without HP.

Exzellent software, works smoothly for those of us who grew up with HP calculators.