Reviews and Recent Comments:

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  Andreas Kirchwitz: Good all-round calc! All in one apk: primary view, scientific view, programmer view. Simple to use but still very strong. There may be calcs with more fancy feature or more configuration options, but this one is an perfect all-rounder for everyday use.
  User rated this game 5/5 on 2016-12-22



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  Javier Sandoval: Best RPN calculator out there hands down.
  User rated this game 5/5 on 2019-03-30



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  A Google User: Easy and well-thought-out. I trust it is the only RPN enabled calculator in the Android device environment worth looking at.
  User rated this game 5/5 on 2018-01-20



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  A Google User: Smartphone friendly Very slick, and one of the few programmer/scientific calculators that look awesome on a 10" screen. Even does fuel consumption conversions, which most dedicated unit conversion apks don't!
  User rated this game 5/5 on 2012-07-29



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  A Google User: Finally! I finally found a modern feeling rpn calculator! I've tried everything on the shop, this is the best so far! The flat Monokai theme looks good. I'd suggest including more material style flat themes like that in the gratis ver, or making it the default theme in the pro. The another themes with the gradients and drop shadows don't follow material rules.
  User rated this game 5/5 on 2016-06-09



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  Gaurav Rajput: One word to say "Unbelievable Calculator" you guys are rocks.
  User rated this game 5/5 on 2019-01-17



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  A Google User: A calculator that does it all Calctastic does everything you need! Primary calculator to advance scientific functions to conversions for bit decoding. And intuitive interface makes it simple to work with and with a really big stack even long complex functions become simple to handle. Well worth the price!
  User rated this game 5/5 on 2012-05-32



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  Paul Richard: Best utility & aesthetic! If only Shay would add graphing...
  User rated this game 5/5 on 2018-02-26



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  A Google User: Overall good calculator Awesome job!
  User rated this game 5/5 on 2016-03-05



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  Surendra Aale: सबै भन्दा उत्तम छ।तकनिकीमा अझ प्रगति गरुन धन्यवाद ।
  User rated this game 5/5 on 2018-11-06



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  A Google User: Good Calculator Apk!! This is a well produced calculator apk and there is so much you can do with it. Thanks for all the Good updates!!!
  User rated this game 5/5 on 2012-06-04



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  A Google User: Complex numbers! Good calculator that supports complex numbers and doesn't ask for unnecessary permissions!
  User rated this game 5/5 on 2016-12-26



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  A Google User: THE greatest calculator! This is the best calculator I've ever had! GREAT WORK!!!
  User rated this game 5/5 on 2014-02-15



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  Michał Zieliński: Just required quickly something that does bit by bit calculation (microsoft's scientific calc was not enough). This was a first search and it will stay that method - excellent look, excellent feeling. I installed it and I think I will never uninstall :)) Definitely a bang for the buck. P.S. Do you think it will be possible to add integer size 128 or even 256 in the future? Or is it too much to ask? ;)
  User rated this game 5/5 on 2018-11-13



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  A Google User: Evo4g BEST I'VE SEEN!
  User rated this game 5/5 on 2013-05-12



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  A Google User: Wow!! Removed my another calculators and stick to this one..... Good apk!!
  User rated this game 5/5 on 2013-12-11



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  A Google User: Best scientific calculator I've inspected a lot of and this is the best one! Not only full of functions but also most importantly player friendly! Just use the 'root' function and compare it with others you will know! After inspected the gratis ver I immediately bought this ver. Plus it's only $0.99, method cheaper than the others.
  User rated this game 5/5 on 2016-10-19



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  Mike Kaleiwahea: RPN ftw! Been using this calc for years because no another comes close.
  User rated this game 5/5 on 2018-01-31



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  A Google User: Been a RealCalc Plus player for a couple of years. I recently found CalcTastic Plus. Clearly the champion. As far as I can tell it's got all the functions of Realcalc and more including polar <-> rectangular conversion, a random number generator (which can output integer random numbers as well), and some rudimentary stats which cleverly uses the registers in the stack as data storage . It also keeps a history not just of numerical results but also of the operations (extremely valuable when in RPN). And it's got a lot more unit conversions than RealCalc. What I'd like to see though is the "Eng SI " mode of Hiper Calc where results are displayed in m, k, M, G, T etc. Useful for, among another fields, electronics design. Moreover, an option to switch functions such as square root as basic instead of x-squared would be helpful for some players. And an "undo" function as in RealCalc would be much appreciated as well. Been scouring for a better RPN scientific calculator for Android device and I can't search any thus far.
  User rated this game 5/5 on 2016-04-02



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  Atilla Yanik: Awesome items ! Works perfectly as designed,like a charm.Excellent UI+most elegant calc skins I have ever seen.Some suggestions:needs scientific function programming and graphing modes to be a full-featured calculator(matrix entry and linear-algebra features would be great).Also, onboard-installed assist would be more convenient than the existing web-based.
  User rated this game 5/5 on 2017-05-13



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  A Google User: A++++ super quick shipping would buy again Edit: Omg it has reverse polish notation I am in love
  User rated this game 5/5 on 2012-07-13



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  Samuel Isaacs: Straight to the point calculator. No advertisements, no BS. Awesome layout and a high level of functionality. Nearly as functional as a awesome graphical calculator. Bought pro to continue the development (not that it needs too much).
  User rated this game 5/5 on 2018-03-07



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  A Google User: Good Apk I tried a few calculator apks and this was the best for me. One feature request. At the moment, when an operator is pressed, x: is pushed to y: but the value is also retained in the x: register. Although x: is over-ridden by whatever is entered next, it can be distracting. I would prefer that (via an optional setting), x: was zeroed as soon as it was pushed to y:
  User rated this game 5/5 on 2013-04-30



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  Steve J: After trying a few calculators, this is the best I've found. I like the multi-line display and another features related to a graphing calculator, but it's not as loaded down with features I never use, making it less cramped. It should use some improvements on a few things, which I've recommended to the dev. I give it 4 stars currently, but since it's by far the closest to what I was looking for, and the dev is very receptive and helpful, I'm giving it 5 stars overall.
  User rated this game 5/5 on 2018-10-11



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  David Borsheim: A really decent scientific calculator. I spent the $0.99 because the author deserves the help. I have spent $30 for a stand-alone with no more functionality. It would be very nice to have a 4-line display. But the $30.00 does not have that either.
  User rated this game 5/5 on 2019-03-09



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  A Google User: Id like rotate option. Id like rotate option such as "system setting/auto rotate/force landscape/force portrait" option.
  User rated this game 5/5 on 2013-10-18



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  A Google User: Good Apk! The best programmer's calculator on Android device. Period.
  User rated this game 5/5 on 2012-10-05



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  A Google User: ,awesome math Perfect caculator
  User rated this game 5/5 on 2016-07-20



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  Joseph Tyson: Move over RealCalc, this is my fresh favorite calculator apk! Split screen works good. A calculator widget would be good!
  User rated this game 5/5 on 2018-07-13



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  A Google User: Best Calculator on Google Play! If you need a robust calculator with a very solid ease of use, you cannot beat the quality and functionality of this apk! I search myself using it everyday and I never have any problems with it unlike another calculator apks I have tried in the past. Thanks ShayTastic Tool!
  User rated this game 5/5 on 2012-12-23



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  A Google User: By far, Android's #1 Programmer's Calc! Worth method more than it's priced at...top notch programmer's calculator. I love the bit popup buttons too. Also, works good on my Asus Transformer running ICS. Review updated - now has unit conversions, thanks!
  User rated this game 5/5 on 2012-06-27



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  Terrence John: Love the UX and UI, combined with good functionality. Best scientific calculator on the Play Shop. Favourite theme is Monokai.
  User rated this game 5/5 on 2017-04-03



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  Vic Kovacs: Handles complex math very nicely. Go ahead, take sqrt(-4). It nonchalantly comes up with 2i.
  User rated this game 5/5 on 2017-05-27



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  A Google User: Bravo Good calculator; gets better with every modernize. Not a lot of calcs can compete with this one.
  User rated this game 5/5 on 2013-10-26



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  Acey Man: Works like an RPN tool calculator ought to work. Sharp graphics and number font. Dozens of themes included are beautiful, too. I want the stack display was depth=4, but no stars off for that. Perfect program.
  User rated this game 5/5 on 2018-11-23



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  A Google User: Perfect calc apk. Suggested Perfect calculator apk in terms of functionality and usability. As an electrical engineer, I use it almost every day. Just 2 territories I would like to see improvement. 1) exp and pi are very commonly used keys for engineers. Would be better if they should be placed on the bottom row. 2) It would be nice if player would be able to move cursor in an active expression to change or correct its variables and operations. Thanks!
  User rated this game 5/5 on 2016-12-23



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  A Google User: Perfect, Versatile Calculator! A must have apk! This is a good apk. If you need a very versatile calculator then this is the one to receive. It is an perfect product! Whether it is primary, scientific, or programming calculations, the CalcTastic calculator has got you covered. I have provided recommendations to the developer and received prompt, perfect responses. A well maintained apk. I am running this on a Nexus One smartphone and a Motorola Xoom smartphone. It works good on both platforms.
  User rated this game 5/5 on 2012-06-16



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  Cygnus Malichius: Everything I was looking for... in a player interface. Customizable look, ok tuning of haptic feedback, and an easily scrollable history. I bought the make batter not because I necessarily required the features, but because I'm satisfied to help quality development. Thanks for a good apk!
  User rated this game 5/5 on 2016-11-29



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  kris baker: Good apk!
  User rated this game 5/5 on 2018-02-09



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  A Google User: Easy and comprehensive I have been using calctastic ever since i got an android device smartphone. It is the best calc I've used on my device. I bought the plus just because I felt the people behind this deserve it for the perfect work.
  User rated this game 5/5 on 2016-04-08