# The Best Calculator - Calc Pro — 10 Powerful Calculators > A powerful mobile calculator with 10 calculators and 10 financial worksheets. (iPhone/iPad app by Panoramic Software Inc..) - Source: https://appshunter.io/ios/app/the-best-calculator-calc-pro/id451544502 (this page in markdown: same URL + `.md`) - Developer: [Panoramic Software Inc.](https://appshunter.io/developer/329216366) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 4.60/5 from 4,710 App Store ratings · 314 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 53 MB - Languages: Korean, Dutch, German (Germany), Russian, European Spanish, American English, Italian, Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan) and 2 more - Released: 2011-08-17 - Data updated: 2026-08-27 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/the-best-calculator-calc-pro/id451544502/reviews.md ## What is The Best Calculator? ***** THE TOP CALCULATOR FOR IPHONE ***** Calc Pro combines 10 powerful calculators with 10 financial worksheets!! "Calc Pro Claims To Be The Top Mobile Calculator Because It Is." - AppAdvice Experience the ultimate mobile calculator now on your iPhone and iPhone Pro! Join the millions of satisfied users worldwide who trust Calc Pro for its unrivaled power, accuracy, and advanced features. Calc Pro is the trusted choice by students and professionals worldwide. It's the only app that can truly replace your pocket calculator. With ten (10) powerful calculators, ten (10) financial and eight (8) statistical worksheets, Calc Pro truly has a calculator for every occasion. Whether you are checking the latest currency rates or converting simple cooking measurements, Calc Pro makes it easy to solve even the toughest calculations. Get Calc Pro now and experience the power of advanced calculations at your fingertips! ====================================== Features include: ====================================== 10 powerful calculators: • Standard Calculator • Scientific Calculator (includes RPN mode and access to constants) • Base Conversions • Graphing Calculator (add up to 8 equations) • Unit Converter (over 3000 conversions in 18 categories) • World Currencies Converter (150+ currencies updated daily) • Constants (contains over 1500 constants in mathematics, physics, the solar system and elements) • Financial Calculator (with 10 worksheets) • Statistics Calculator with 8 types of regression analysis and graphing • Date & Time Calculator (with lunar moon phases) The Financial Calculator contains 10 powerful calculator worksheets to help solve common financial problems. E-mail your worksheets. • Mortgage Calculator (with Amortization Tables) • Tip Calculator • Loan Calculator • Time Value Money worksheet • Financial Date worksheet • Percentage Change worksheet • Break Even worksheet • Profit Margin worksheet • Depreciation worksheet • Compound Interest worksheet Five display options: normal, scientific, fractions, engineering, and fixed (2-10 decimal places). Five calculator modes: simple, algebraic, direct algebraic, expression, and RPN. Choose from several skin styles and color schemes. Advanced graphing functions: simultaneous graphs, find points on the graph and show tangents. E-mail your equations and graph image. Tape View displays your recent equations and allows you to copy or email them. Supported Languages: English, German, Spanish, Portuguese, French, Italian, Dutch, Japanese, Simplified & Traditional Chinese, Korean, and Russian. ====================================== Follow us on Twitter - @PanoramicSoft Like us on Facebook - PanoramicSoft ## Key features - 10 powerful calculators (Standard, Scientific, Graphing, etc.) - 10 financial worksheets (Mortgage, Loan, Compound Interest, etc.) - Unit Converter with 3000+ conversions - World Currencies Converter - Scientific constants database - Advanced graphing functions - Tape View for equation history ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Calc Pro - Full Version | $7.99 | one-time | | Graphing Calculator | $0.99 | one-time | | Base Conversions | $0.99 | one-time | | Unit Converter | $0.99 | one-time | | World Currencies | $0.99 | one-time | | Constants | $0.99 | one-time | | Financial Calculator | $1.99 | one-time | | Statistics Calculator | $0.99 | one-time | | Date & Time Calculator | $0.99 | one-time | | Calc Pro - Design Pack | $0.99 | one-time | ## What do users think of The Best Calculator? Overall sentiment: positive **Pros** - 👍 Great app - 🚀 Versatile and comprehensive - 👍 Easy to use - 👍 Excellent calculator - 👍 Useful features - 👍 Handy tool - 👍 Impressive - 👍 Awesome **Cons** - 🐛 Crashes frequently - 🔋 Ads disrupt usage - 🐛 Unstable - 🔒 Purchase issues - 🐛 Doesn't work on newer iOS versions **Commonly reported bugs** - Crashes on launch - Ads block access to calculator - Paid version still shows ads - Conversion update lags behind real-time **Most requested features** - Horizontal layout option - Ability to edit/reuse calculations from tape - More unit conversion options - Standard deviation function in statistics mode - Dark mode ## Recent user reviews (10 of 314) All indexed reviews: https://appshunter.io/ios/app/the-best-calculator-calc-pro/id451544502/reviews.md ### 1/5 — Can’t Close Ads So Practically Useless *2026-07-15* Doesn’t matter how good it is because after a few calculations an unclosable unwanted ad pops up covering the entire iPhone screen and remains there for an eternity trying to force you to click on it. Meanwhile you can’t use the calculator so don’t bother. This is just a clickbait machine! ### 5/5 — Great calculator *2026-06-12, version 6.10.0* TY enjoy. Using it ### 2/5 — Currency Exchange *2026-05-13, version 6.10.0* May 12 2026 I keep sending feed back about this but it’s still the same. It’s so annoying that the app on currency keeps defaulting to USD GBP It should stay on last used or there should be an option to choose my defaults. I hate the fact that I have to constantly (every time) I use the app select my frequently used currency Because it keeps defaulting to USD GBP PLEASE FIX IT I can’t stand the fact that I have to keep selecting the currency I’m trying to convert to every single time. It never keeps the last used or (short cut it should have for most frequently used). In short… I have to always scroll to find my most used currency conversions. I would rate this 5 out of 5 but the annoyance of the currency which I use mostly, is quite frustrating. THE app is honestly quite amazing. I use the other aspects of it but I mostly use the currency conversion Update Dec 28 2025 Last used currency conversion still not dealt with on this app. I would rate it higher, but I reviewed this sometime ago and no update has been done on that aspect for frequently used currency conversions. That’s why it gets a two out of five. ### 1/5 — Where Are The Cooking Conversions *2026-03-19, version 6.10.0* I used to use this calculator app for cooking conversions. I think there was even a labeled cooking section under the calculator types. I don't see it anymore. ### 2/5 — Currency Exchange *2025-12-28, version 6.10.0* I can’t stand the fact that I have to keep selecting the currency I’m trying to convert to every single time. It never keeps the last used or (short cut it should have for most frequently used). In short… I have to always scroll to find my most used currency conversions. I would rate this 5 out of 5 but the annoyance of the currency which I use mostly, is quite frustrating. THE app is honestly quite amazing. I use the other aspects of it but I mostly use the currency conversion Update Dec 28 2025 Last used currency conversion still not dealt with on this app. I would rate it higher, but I reviewed this sometime ago and no update has been done on that aspect for frequently used currency conversions. That’s why it gets a two out of five. ### 5/5 — кПа *2025-08-06* Добавьте пожалуйста в конвертер давления единицу кПа, очень не хватает. ### 5/5 — Прекрасно! *2025-05-08* Обратная польская система счета реализована прекрасно! Кто понимает, будет восхищение. При этом куча других возможностей. И конвертация, и обычный калькулятор. Короче, много чего попробовал. Это приложение прекрасно отшлифовано для любого пользователя. Вплоть до настойки расцветки. Вот же заморочился создатель! Респект и уважуха! ### 5/5 — Great ! *2025-04-08, version 6.10.0* Would be nice if there was a monthly add on to compound interest ### 5/5 — Excellent *2025-02-06* Good ### 5/5 — Calculatrice *2024-12-30, version 6.10.0* Très satisfait mais on devrait pour lire ce qu’on enregistre. Exemple si l’on additionne 28+33 on ne voit pas ce que l’on écrit, la réponse est visible • ## Frequently asked questions about The Best Calculator ### What does Calc Pro do? Calc Pro is a mobile application that combines ten powerful calculators and ten financial worksheets. It is designed to handle a wide range of calculations, from basic arithmetic and scientific computations to complex financial analysis, unit conversions, and graphing. ### What are the key features of Calc Pro? Key features include a standard calculator, scientific calculator with RPN mode, graphing calculator, unit converter with over 3000 conversions, world currencies converter, financial calculator with 10 worksheets (e.g., mortgage, loan), and a statistics calculator. It also offers multiple display and calculator modes, customizable skins, and a tape view for equation history. ### How much does Calc Pro cost? The application is available for free with in-app purchases. This model allows users to download and use the basic functionalities without upfront cost, with options to purchase additional features or unlock the full suite of tools. ### What devices is Calc Pro compatible with? The app is designed for iPhone and iPhone Pro devices. It supports multiple languages including English, German, Spanish, Portuguese, French, Italian, Dutch, Japanese, Chinese, Korean, and Russian. ### Who would benefit from using Calc Pro? Calc Pro is beneficial for students who need advanced calculators for their studies, professionals dealing with financial planning or data analysis, and individuals who frequently perform unit conversions or currency exchanges. Its comprehensive feature set makes it suitable for a wide array of users requiring precise calculations. ## Version history (last 5 releases) ### 6.10.0 — 2024-10-22 minor improvements and support for iOS 18 ### 6.9.0 — 2023-03-13 The latest update includes minor fixes and improvements to enhance the overall user experience. ### 6.8.6 — 2021-09-01 Minor bug fixes. ### 6.8.0 — 2021-08-25 Minor bug fixes. ### 6.7.2 — 2019-08-29 Minor bug fixes. ## Apps similar to The Best Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Calculator +](https://appshunter.io/ios/app/calculator-plus/id351815470) | 4.6 (10,020) | Free | Utilities | | [Calculator #](https://appshunter.io/ios/app/calculator/id458535080) | 4.6 (35,876) | Free | Utilities | | [Calc Pro - The Top Calculator](https://appshunter.io/ios/app/calc-pro-the-top-calculator/id438580059) | 4.7 (358) | $7.99 | Utilities | | [Basic Calculator: Classic Calc](https://appshunter.io/ios/app/basic-calculator-classic-calc/id430271248) | 4.8 (3,192) | Free | Utilities | | [Calculator₊](https://appshunter.io/ios/app/calculator/id398129933) | 4.7 (1,726,794) | Free | Utilities | | [Calculator +ㅤ](https://appshunter.io/ios/app/calculator-plus/id1597933199) | 4.6 (4,519) | Free | Utilities | ## More apps by Panoramic Software Inc. - [Calc Pro - The Top Calculator](https://appshunter.io/ios/app/calc-pro-the-top-calculator/id438580059) - [Calc Pro HD - Top Calculator!](https://appshunter.io/ios/app/calc-pro-hd-top-calculator/id456661966) - [Calc Pro HD – iPad Calculator](https://appshunter.io/ios/app/calc-pro-hd-ipad-calculator/id457004119) - [Guitar Suite - Metronome, Tuner, and Chords Library for Guitar, Bass, Ukulele](https://appshunter.io/ios/app/guitar-suite-metronome-tuner-and-chords-library-for-guitar-bass-ukulele/id501108781) - [Guitar Suite HD Free - Metronome, Tuner, and Chords Library for Guitar, Bass, Ukulele](https://appshunter.io/ios/app/guitar-suite-hd-free-metronome-tuner-and-chords-library-for-guitar-bass-ukulele/id525032593) All apps by Panoramic Software Inc.: https://appshunter.io/developer/329216366 ## Related topics [the best calculator](https://appshunter.io/ios/topics/the-best-calculator) · [rpn calc pro](https://appshunter.io/ios/topics/rpn-calc-pro) · [touch rpn calc](https://appshunter.io/ios/topics/touch-rpn-calc) · [bottoms up calcs](https://appshunter.io/ios/topics/bottoms-up-calcs) · [probability calculator](https://appshunter.io/ios/topics/probability-calculator) · [mvu calc](https://appshunter.io/ios/topics/mvu-calc) · [calsheet](https://appshunter.io/ios/topics/calsheet) · [accountant calc pro](https://appshunter.io/ios/topics/accountant-calc-pro) · [nle calc](https://appshunter.io/ios/topics/nle-calc) · [p2r racing calculators](https://appshunter.io/ios/topics/p2r-racing-calculators) · [rmd calculator](https://appshunter.io/ios/topics/rmd-calculator) · [1337 calc](https://appshunter.io/ios/topics/1337-calc) · [financial calculators](https://appshunter.io/ios/topics/financial-calculators) · [froid pro calcul](https://appshunter.io/ios/topics/froid-pro-calcul) · [money calculator conversion](https://appshunter.io/ios/topics/money-calculator-conversion) · [10pro](https://appshunter.io/ios/topics/10pro) · [ba calc](https://appshunter.io/ios/topics/ba-calc) · [npv calculator](https://appshunter.io/ios/topics/npv-calculator) · [cft calculators](https://appshunter.io/ios/topics/cft-calculators) · [dormer pramet calculators](https://appshunter.io/ios/topics/dormer-pramet-calculators) --- *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 2026-08-27.*