# CALC Prime — Swift, Practical Calculator > Intelligent, multi-functional scientific calculator with advanced features and customization. (iPhone/iPad app by QApps LLC.) - Source: https://appshunter.io/ios/app/calc-prime/id842563364 (this page in markdown: same URL + `.md`) - Developer: [QApps LLC](https://appshunter.io/developer/395652397) - Category: Education, Productivity - Price: $8.99 - Rating: 4.30/5 from 4 App Store ratings · 19 written reviews indexed - Age rating: 4+ - Requires: iOS 15.5 · 9 MB - Languages: American English, Czech, French (France), German (Germany), Italian, European Portuguese, Russian, Chinese (Simplified, China), Slovak, European Spanish and 2 more - Released: 2014-03-24 - Data updated: 2026-08-28 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/calc-prime/id842563364/reviews.md ## What is CALC Prime? Used by 10ths of thousands in iPad equipped classrooms, CALC Prime is optimized for productivity on iOS12-17. It's the multi-tasking powerhouse of tools & features you've been seeking. This release was specifically designed for Working Professionals and Classroom Teacher/Student settings. No pup-ups, external links or any end-user stats collection with the exception of the startup tutorial and the UserVoice powered support center. (MDM & AppConfig enabled for EMM systems such as IBM's MaaS360) * 5-Stars Teacher Certified by the #1 Educational App Store ~ https://www.educationalappstore.com * Used by thousands in iPad equipped classrooms ~ https://QApps.co/News Educational institutions can also benefit from a 50% discount via Apple's VPP (Volume Purchase Program). CALC Prime can Calculate, Aggregate and Convert + it has recently introduced Smart Basic Graphing capabilities. One of it's praised features is the ability to share expressions or user-defined functions easily between CALC users. CALC is an intelligent, multi-functional scientific calculator designed to make math look like art. CALC provides 55 pre-set + any number of user-definable Advanced Functions, Live currency and Custom conversions, and the ability to personalize your experience with limitless options of colors, fonts, shapes, sizes and layout arrangements. CALCs external capabilities include a native watchOS app with haptic and conversions, Notification Center Widget and also a Custom Keyboard calculator. CALC has a quick gratuity "approximator" and an on-screen timer to effectively track the remaining minutes and seconds during a test for instance. CALC is really clever. CALC can do live math expressions: From a simple expression like "1+2" to more advanced expressions like "3+(3x9(80+sin(90)))" Advanced calculator. By swiping left and right on CALC, you can easily access over 50+ advanced math functions and also add your own. History log. CALC remembers what you have calculated. Swipe up, and you can see all your previous calculations and perform aggregate functions. Built in converter. Convert your results in 26 common categories, including currency and one extra custom category where you can define your own units and conversions. Colorfull Themes. Limitless lovely themes for you to browse, including optional parallax background image of your choice! Easy access. Tap & Hold a math expression to edit it. Shake your device to undo Tap & Hold a number key for smart parenthesis Tap & Hold the decimal point for RANDOM decimal Tap & Hold the “ans” key for answer history Tap & Hold the “÷” key for 1/x Tap & Hold the “-” key to negate Text style Edit option for Expressions Tapping sound options ..and a lot more! ## Key features - Advanced scientific calculation - Smart Basic Graphing - Live currency and custom conversions - History log with aggregate functions - Customizable themes and layout - Native watchOS app and custom keyboard ## Recent user reviews (10 of 19) All indexed reviews: https://appshunter.io/ios/app/calc-prime/id842563364/reviews.md ### 5/5 — Great calculator app *2022-12-22* seller still updating app. ### 5/5 — BEST Calculator App! *2016-06-25* That's all I can really say. I had been through several and none of them impressed me, but once I realized how this one works I love it! You should definitely download this app. It's all you'll ever need a calculator. It's killing me that more people haven't tried it out! Forget Texas Instruments!! Lol 🙃 ### 5/5 — Really cool features *2016-06-10* I don't write many reviews and I'll be short. This calculator has a ton of time saving features. The smart parentheses and smart tip calculator was an awesome idea. The new tutorial explains how to use the features well and are key to using all the features. ### 5/5 — Doesn't get any better than this *2016-02-04* I just spent the last week, looking at and trying many different calculators, even paying $10 bucks for one of them and none of them are as good or are as complete as this one. The interface has a small learning curve but with it comes amazing flexibility and powerful features. I don't usually write reviews but this one is well worth it! ### 2/5 — Not working on Apple Watch *2015-11-17* Bought the app for the Apple Watch functionality, but the app does not appear on the watch. Also it complicated to use. Missing intuitive icons and menus. There is good help available within the app but occasional users will be required to run through how to use the app often to get the most out of it. Dev team, please fix the Apple Watch functionality! ### 4/5 — Great *2015-04-09* Great app ### 3/5 — Good App, but.. *2015-04-04* Needs improvement in conversions. Not intuitive and clumsy. ### 5/5 — Great! *2015-03-20* Love the layout, ease of getting the additional functions and overall use ability of the app ### 5/5 — Kind of cool *2015-03-18* Except every single time I go too use the calculator I'm asked too leave a review little too often ### 3/5 — A little disappointed *2015-03-16* Calculator works ok, but the converter has some resolution inaccuracies. ## Frequently asked questions about CALC Prime ### What is CALC Prime? CALC Prime is an intelligent, multi-functional scientific calculator designed for productivity. It offers advanced calculation, aggregation, conversion, and graphing capabilities, along with extensive customization options. ### What kind of calculations can CALC Prime perform? CALC Prime can handle simple expressions like "1+2" to complex ones such as "3+(3x9(80+sin(90)))". It also provides 55 pre-set advanced functions and allows users to define their own. ### Does CALC Prime have a history log? Yes, CALC Prime features a history log that remembers all previous calculations. Users can swipe up to access past calculations and perform aggregate functions on them. ### Can CALC Prime convert units? Yes, CALC Prime includes a built-in converter for 26 common categories, including live currency conversion. It also allows for one extra custom category where users can define their own units and conversions. ### Is CALC Prime suitable for use in classrooms? Yes, CALC Prime is optimized for iPad-equipped classrooms and is used by thousands of students. Educational institutions can benefit from a 50% discount via Apple's Volume Purchase Program. ### What platforms is CALC Prime available on? CALC Prime is available on iOS devices including iPhone and iPad, and also features a native watchOS app, Notification Center Widget, and a Custom Keyboard calculator. ### How often is CALC Prime updated? CALC Prime was last updated on November 5, 2025, with version 3.7.2. The app is designed for iOS 12-17, indicating ongoing support and development. ### What is the price of CALC Prime? CALC Prime is a paid application priced at $8.99. Educational institutions can receive a 50% discount through Apple's Volume Purchase Program. ## Version history (last 5 releases) ### 3.7.2 — 2025-11-05 OS26 updates and adjustments ### 3.6.5 — 2025-01-07 Added few new units to the convertor New setting to disable live calculations Few minor tweaks as always! ### 3.6.4 — 2024-11-12 Squished a few Bugs + Minor UI Improvements! ### 3.6.3 — 2024-11-07 iOS18 optimizations and new Custom Theme & Feel Designer! ### 3.5.58 — 2024-03-20 Fix for expression edit issue introduced in prior release. ## Apps similar to CALC Prime | App | Rating | Price | Category | | --- | --- | --- | --- | | [Quick Graph](https://appshunter.io/ios/app/quick-graph/id292412367) | 4.6 (405) | Free | Education | | [Taculator 84 Graphing Calc](https://appshunter.io/ios/app/taculator-84-graphing-calc/id1457737367) | 4.5 (7,531) | Free | Education | | [Calculate84 Plus](https://appshunter.io/ios/app/calculate84-plus/id1472933065) | 4.5 (305) | Free | Education | | [Desmos Scientific Calculator](https://appshunter.io/ios/app/desmos-scientific-calculator/id1235292051) | 4.3 (332) | Free | Education | | [Graphing Calculator Plus AI](https://appshunter.io/ios/app/graphing-calculator-plus-ai/id1279565050) | 4.6 (12,006) | $5.99 | Education | | [GraphNCalc83](https://appshunter.io/ios/app/graphncalc83/id744882019) | 4.9 (4,033) | $12.99 | Education | ## More apps by QApps LLC - [CALC Smart Calculator ±](https://appshunter.io/ios/app/calc-smart-calculator/id576675190) - [Foreseenly™ CashFlow](https://appshunter.io/ios/app/foreseenly-cashflow/id965047409) - [QApps®](https://appshunter.io/ios/app/qapps/id1178455207) - [Fiance](https://appshunter.io/ios/app/fiance/id6472299372) - [Loan Interest](https://appshunter.io/ios/app/loan-interest/id6496372832) All apps by QApps LLC: https://appshunter.io/developer/395652397 --- *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 2026-08-28.*