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10 Best and Most Complete Calculator Apps for Android

Written by Sera Serinda A

Most smartphones come with built-in apps, but sometimes these don't quite cut it. Take the default calculator, for instance. It's fine for basic sums but falls short for more complex calculations.

If you often find yourself needing to handle complex calculations, you don’t have to buy a separate calculator. Just download one of these top calculator apps for Android!

Why does Carisinyal recommend these apps? Because they are versatile, reliable, and capable of performing complex calculations with ease.

1. HiPER Scientific Calculator

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Have you ever used a scientific calculator? Then you'll love HiPER, a trusted app that replaces your bulky handheld calculator. HiPER not only meets all your scientific calculation needs but also has features that surpass traditional scientific calculators.

It can visualize 3D graphs for mathematical functions and supports calculations with up to 90 physical constants, plus unit conversions for over 250 units. Impressive, right?

HiPER is designed to feel like a real scientific calculator but can be customized for your device. It offers "Pocket" mode for smaller devices, "Compact" for regular smartphones, and "Expanded" for tablets.

Things I like about HiPER:

  • Surpasses traditional scientific calculators.
  • Includes a "Quick Tour" tutorial.
  • Customizable calculator layout.
  • Offers various color themes.

2. MobiCalc

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It's hard to believe that MobiCalc offers so many features for free—no ads, no subscriptions required.

Formerly known as Mobi Calculator, this app lets you track calculation history, add comments, and share results at no cost. It includes useful extras like time calculations and functions for sine, cosine, and exponentials. Best of all, you can use MobiCalc offline and completely free.

Things I like about MobiCalc:

  • User-friendly design.
  • Lightweight app that won’t hog memory.
  • Free features for calculation history, comments, and sharing.
  • Includes a time calculator.
  • Works offline and totally free.

One thing that could be improved in MobiCalc:

  • Some users find the app challenging on lower-spec devices.

3. Scientific Calculator plus 991

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The Scientific Calculator plus 991 offers the comprehensive functionality of a high-end calculator. This app includes a basic calculator, an advanced calculator, a scientific calculator, and even a graphing calculator.

Beyond standard calculations, it also provides math and physics formulas, unit conversions, programming codes, and chemical equations ready for immediate use. This makes it an ideal choice for students and engineers.

One standout feature is its ability to scan math problems directly from paper using your Google account, providing a seamless solution for complex calculations.

Things I like about Scientific Calculator plus 991:

  • Extensive calculator functionalities.
  • Customizable themes and fonts.
  • Includes unit conversions, programming codes, and scientific formulas.
  • Features Math OCR for scanning problems.

4. RealCalc Scientific Calculator

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Quartic Sofwater's RealCalc mimics the look and feel of a traditional handheld calculator. It’s designed to offer the familiar usability of physical calculators.

RealCalc comes with standard scientific calculator functions and supports multiple display formats, including binary, octal, and hexadecimal number systems.

The pro version of RealCalc adds features like fraction calculations, angle measurements in degrees/minutes/seconds, customizable conversions and constants, landscape mode, home screen widgets, and an expanded display up to 12 digits, enhancing its flexibility for various user needs.

Things I like about RealCalc:

  • Emulates a traditional handheld calculator.
  • Includes all standard scientific calculator functions.
  • Ad-free use even in the free version.

5. ClevCalc 

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ClevCalc is a user-friendly calculator app that consolidates various calculation tools into one simple interface. It's a favorite among over 100 million Android users, thanks to its ease of use and comprehensive features.

This app includes a standard calculator equipped with scientific functions, allowing you to handle everyday arithmetic, as well as more complex calculations like square roots, percentages, and trigonometric, exponential, and logarithmic functions. It also comes with handy unit conversion features across multiple categories.

Additionally, ClevCalc features a currency converter that supports 135 global currencies such as the dollar, euro, yen, and yuan, and updates exchange rates in real time.

Things I like about ClevCalc:

  • Offers a wide range of calculators, from basic to specialized ones like currency converters, health calculators, GPA calculators, and ovulation calculators.
  • Includes a history feature to review past calculations.
  • Allows setting decimal numbers for more precise results.
  • Customizable color themes to suit your preferences.

6. Calculator ++

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Calculator++, often referred to as C++, offers two layout options: standard and engineer, tailored to your needs. You can also customize the theme and add a convenient widget to your home screen for quick access.

Key features include support for binary, decimal, and hexadecimal number systems, and a "Plot Graph" feature to graph equations visually.

The "Unit Conversion" feature is handy for converting various measurements like time, substance amount, electrical power, mass, length, temperature, and number systems.

Things I like about Calculator++:

  • Offers both simple and scientific calculator layouts.
  • Home screen widget for quick access.
  • Capable of graphing equations and converting units.
  • Includes a Dark Mode by default.

One thing that could be improved:

  • Compatibility is limited to devices running Android version 2.2 and above.

7. Calculator by Google

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For straightforward math needs, the Calculator by Google is an excellent choice. It handles both basic operations like addition, subtraction, multiplication, and division, and advanced functions such as logarithms, exponentials, and trigonometry.

While it's not packed with extra features, its clean and stylish interface makes it easy to use.

Things I like about Calculator by Google:

  • Supports basic and complex math calculations.
  • Includes a history feature to track past calculations.
  • Simple and attractive interface design.
  • Offers a Dark Mode.
  • Light on device resources.
  • Free to use without ads or premium upgrades.

One thing that could be improved in Calculator by Google:

  • Could benefit from more number formatting options.

8. CalcTape

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CalcTape combines the functionality of a standard calculator, a desktop calculator, and a notes app, making it perfect for everyday use. It's designed to handle everything from simple to more complex calculations.

This app retains the straightforward interface of a calculator but adds spreadsheet-like capabilities. Beyond just crunching numbers, CalcTape allows users to annotate their calculations.

The premium version offers extra features like exporting and importing calculations, enhancing its versatility.

Things I like about CalcTape:

  • Merges calculator functions with note-taking.
  • Supports extended calculations that can be edited if mistakes are made.

Areas for improvement in CalcTape:

  • Some users report a decrease in quality in the recent version.
  • It can feel a bit complex at first but proves very useful once you get the hang of it.

9. CALCU: Stylish Basic Calculator

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True to its name, CALCU stands out with its stylish, customizable design. Users can personalize not just the layout of the calculator but also the background theme.

Functionally, the app includes both standard and scientific calculators and features a calculation history. Designer Calculators, the developer behind CALCU, also incorporates time stamps with each calculation, making it easier to review them one by one.

Things I like about Calcu:

  • Highly customizable appearance with a variety of themes.
  • Offers both standard and scientific calculator functionalities.
  • Includes a history of calculations that can be shared freely.

One thing that could be improved in Calcu:

  • Some users have reported bugs, and the latest free version contains more ads.

10. Calculator Plus with History

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Calculator Plus with History is a free app by Digitalchemy, offering a no-cost alternative to the paid version of Calculator Plus.

While this version has some limitations, it still provides reliable basic calculations and features an easy-to-access calculation history. Users can also add notes to their calculation history and copy and paste operations and results effortlessly.

Upgrading to a subscription unlocks premium features like widgets, tax calculator functions, and the GT (Grand Total) button, enhancing the app's functionality.

Things I like about Calculator Plus with History:

  • Handles simple calculations well.
  • Includes a calculation history feature.
  • Allows notes to be added to the calculation history.
  • Offers four free calculator themes.

Areas for improvement:

  • The presence of ads in such a basic tool can be off-putting.
  • Features are somewhat restricted in the free version.

So, don't settle for your device's default calculator if it only does the basics. Explore these apps, and if they're free on the Google Play Store, why spend money on an expensive physical calculator?

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