# Calculator X Pro — user reviews > 37 indexed App Store user reviews of Calculator X Pro by DROXIC OOD, rated 4.70/5 from 18 ratings. - Source: https://appshunter.io/ios/app/calculator-x-pro/id725315019/reviews - App overview in markdown: https://appshunter.io/ios/app/calculator-x-pro/id725315019.md - Rating breakdown: 5★ 16 · 4★ 1 · 3★ 0 · 2★ 0 · 1★ 1 ## Newest reviews (12 of 37) ### 4/5 — Utile *2019-10-25, version 1.3* J'aime cette app. ### 2/5 — Landscape on Iphone *2018-01-06, version 1.2.1* Calculator should be portrait on the iPhone, not the other way around: uninstalled.. 5 stars on the iPad though.. ### 4/5 — Fisherman83 *2016-11-14* Works well not only for math, but all conversions (including currency when traveling)! ### 4/5 — Work as it was *2015-01-03* Great app for iPad + nice color ### 2/5 — Annoying reviews reminder.... *2014-05-22, version 1.1* Given that this otherwise OK app constantly prompts me to leave a review which has turned into a plain annoyance I have chosen to give this app a 2 star review. Give the option of not leaving a review please - it's a PAIN! Also, there is no obvious way to change skins. Either this functionality doesn't exist, or the link to change it is not obvious. Either way the product images are mis-leading. ### 3/5 — Bad coloration *2014-04-17* Bought pro. Colors changed. Old colors were far superior. ### 4/5 — Calculator X *2014-04-04, version 1.1* Excellent. Beaucoup d'unités de conversion. Par contre, dommage qu il n y ait pas de fonction d inversion rapide des unités. ### 4/5 — Nice calculator, but very slow loading time *2014-03-10* Every time I use this calculator app I am usually in need of getting a calculation done quickly. With numbers in my head I want to quickly put them into this calculator app before I forget, but the app load time is so slow. Is there a possibility of getting the app to load quicker? By the way I'm using an iPad 4, which should have more than enough power to open this app quickly. ### 5/5 — Calculator plus! *2014-01-28* This is great because the added conversions are very helpful. Not sure what that other reviewer is talking about. Conversions are spot on accurate. ### 5/5 — Good *2014-01-16, version 1.0* Pretty decent app worth the money ### 5/5 — The ios7 calculator the iPad should have come with *2014-01-13, version 1.0* This is what you want for your iPad. Clean, elegant, functional. To boot, it has a unit converter. It should've come stock. ### 5/5 — Does the job *2014-01-12* Does the job PLUS has a functionality to convert units. ## Most critical reviews (10 lowest-rated) ### 1/5 — No longer works. DELETE *2015-12-12* This app no longer works with the latest iOS. The conversion function no longer switches between different functions. Delete delete delete. Useless. ### 1/5 — Hasn't worked since iOS 8 *2014-11-08* Would give it more stars if it worked. ### 1/5 — Don't waste time *2014-10-02* Not worth it ### 1/5 — Disappointing *2014-08-24, version 1.1* Wish I'd looked into this app further, but got for the ability to do unit conversions. The look and feel is wishy-washy, really needs additional skins to allow for keys to be in a heavier weighted font etc. as for using it on an iPhone it is rendered practically useless by not being able to use the calculator in portrait mode, you only get the unit converter, if you go to landscape then you get the scientific calculator, redundant for 99% of daily calculations! plus totally user unfriendly when in landscape mode for quick "off the cuff" usage. ### 1/5 — Look elsewhere! *2014-07-09, version 1.1* Its a calculator and as calculators go it works but its a poor app. Interface is too BRIGHT and no skins. Much better ones to be had. ### 1/5 — Buy something else *2014-04-11* Not loving the app, tends to have issues with functioning. My measurements gauge stopped working in iPad mini retina. Probably better calc apps out there. Look for a different one. ### 1/5 — Why doesnt it let you use the calculator on portrait mode? *2014-03-04, version 1.0* On the iphone it doesnt let you use the calculator on portrait mode. Only lets you use converter. ### 1/5 — Horrible design. *2014-02-24* White background and very thin numbers just very hard on my eyes and plain ugly. Deleted this app immediately after I bought it. Will try to get a refund if I can. 99 cents is not a big deal, but this way I will send a message to the creator of this app. ### 1/5 — EE doesn't work *2013-12-11, version 1.0* This app won't divide numbers in scientific notation (EE) button! Hope it gets fixed soon. I paid money for something that doesn't work! Frustrating. ### 1/5 — Bad *2013-12-09* It is not worth the money, the scientific calculator only goes up to 5-6 digits at max. The conversions are estimated so you don't get even a ballpark answer. EX) 1Gigabyte= 1000 KB... It's actually supposed to be 2048... So overall... Not worth it at all. ## Most praised reviews (10 highest-rated) ### 5/5 — Très pratique *2019-10-30, version 1.3* J’aime beaucoup cette application ### 5/5 — Subaie *2016-06-09* Handy app. ### 5/5 — Works for me! *2016-04-25* Works for me on my new iPad mini 4 with iOS 9. Great for traveling as it functions even offline. Currency conversions are based on the most recent download when offline. ### 5/5 — Gilles L. *2016-04-09, version 1.2.1* Un indispensable autant pour le voyage que pour le domicile. Utilisation facile autant pour IPad que IPhone ### 5/5 — Good *2015-05-11* Perfect app ### 5/5 — Pratique *2014-09-18, version 1.1* Très utile d'avoir un convertisseur en tout temps. facile à utiliser j'adore. ### 5/5 — Best *2014-08-25, version 1.1* Most outstanding paid calculator. Great for iPad users that can't seem to find the app :p ### 5/5 — Muy buena *2014-05-02* Muy buena barata y bonita, funcional y le queda perfecta al iOS 7 ### 5/5 — Excellent *2014-04-01, version 1.1* Excellent ### 5/5 — J'adore ! *2014-03-18, version 1.1* Vraiment bien fait et pas trop cher ! Bravo :-) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*