Kalkyl

The only negative is that you need to learn how to operate the second function of the jeys. It’ll patiently explain to you that you should slide down.

The app is really great and has a lot of functions. It’s completely free and no ads which is great. It also has a very nice layout optimized specifically for iPad, which is something apple themselves still hasn’t done.

Very functional and complete graphing calculator. Graph function really handy. No nag/advertisement sofar, seems to be truely “free”. Inline support available, describing features clearly.
Userinterface iApproved! Works like most Apple apps do, hardy any learning curve, look & feel is Apple worthy.
This app deserves a high place in the rankings.
I really can recommend this calculator.
After leaving a note to the developer, I received a prompt answer the same day. Excellent!
This calculator is the ideal solution for the ‘missing’ calculator on the iPad.
Regards,
H.P. (NL)

Feedback while typing. Cos, Sin etc even with graphics! Nice. I miss a copy feature but maybe that comes in an update.