A Google user
★★★★★
"Not sure how i should rate this. I tried the free version, liked it and paid. In the settings it still tells me there`s an ad-free version available, when i tap i`m taken to the paid app site and told it`s installed. All true, of course, but it would be much cleaner if the option to install the ad-free version was removed from the menu after, you know, it`s installed...? Still 5 stars for fxnality."
Version: 7.2.1
Thomas Ryu Gruber
★★★★★
"bought it after using the free version for more than a year. this calc is really excellent - highly configurable, perfect for power user! (especially like that you can output mixed fraction by default, and the configurable vibrate on keypress)"
Version: 13.0.0
A Google user
★★★★★
"I only wish it had tutorials. Lots of great functions. :) worth the money!"
Version: 9.8.1
Thomas Wening
★★★★★
"I used this app a lot during my studies in physics at the university. It is super handy! And even now that I have graduated and work in software development, I sometimes still use it when I have a `physics phase` and do some calculations."
Version: 14.5.0
Ignavum
★★★★★
"This is an absolutely amazing calculator that has almost anything one could desire. The only thing that I find a bit lacking is the total number of variables that one can use for symbolic algebra. currently you only have 3 variables to use: x, y and z. however there are some situations where I`d love to have some more. specifically in conjunction with the Jacobi-matix. would that be a feature that could be added?"
Version: 14.5.1
A Google user
★★★★★
"Is there help within the App?...If so, how does one access the help and instructions?"
Version: 4.2.0
David Vorous
★★★★★
"I absolutely love this calculator! It`s convenient when I don`t want to bust out my Nspire for simple calculations."
Version: 12.2.0
Luca
★★★★★
"This is the best calculator I have ever used. Everything one could possibly want and use (from statistics over linear algebra and plotting to physical constants) is included. I really noticed my dependance on it when I got an iPad and couldn`t find ANY calculator (and I tried really hard) comparable to this one on the AppStore. Thank you for the great work you put in!"
Version: 14.5.0
A Google user
★★★★
"Very good calculator. Very comprehensive but also complicated. NEEDS A HELP FUNCTION so user can use all of the features"
Version: 10.3.0
Raphael Kroes
★★★★★
"I initially tested the ad-based free version. I liked it so much, and do consider this app so convenient, that I decided to buy the full version. For myself, it`s worth it as I am used to using calculators with many features. It definitely worth it, if you want to buy an app that performs well!"
Version: 14.1.1
A Google user
★★★★★
"Mr. Stephens` new scientific calculator is capable of doing so much that it`s going to take me a considerable amount of time to thoroughly test every one of its capabilities. Based on my efforts thus far, I fully anticipate that it will perform without fault. Certainly its cosmetics need some work in my opinion. Things like size and placement of secondary functions` labels on keys, space between the degrees symbol and minutes symbol and between the minutes symbol and seconds symbol ... minor stuff like that which will improve its appearance. So far, the only thing that I do not like about this calculator is its reporting of infinity (the symbol) as the result of a numerical calculation. If a calculator was to report that a particular limit is infinity, then fine; however, as an old school mathematician, I take exception to the statement 5 ÷ 0 = infinity, as if infinity was a numerical value. (Yes, I know how the statement is intended to be interpreted, nevertheless ...) I look forward to returning to edit these preliminary comments after spending much more time with this splendid calculator."
Version: 1.1.0
A Google user
★★★★★
"This is one of the most feature-rich calculator I downloaded. Looking forward for the future updates and features."
Version: 10.11.0
A Google user
★★★★★
"Finally a proper calculator!"
Version: 1.0.0
James Perso
★★★★
"Works well, multiple functions."
Version: 14.4.0
A Google user
★★★★
"Dear developer, please concentrate on integration and differentiation operation... And themes can be updated with more nice options... And need help option..."
Version: 10.11.0
Alfredo
★★★★★
"Excellent, intuitive use and has all the functions I need"
Version: 14.4.1