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Calculator! app review: offering a full-featured calculator with notes and AirPrint support 2021



Calculator! is a fully functional standalone iPhone calculator app that supports both standard and scientific functions. This calculator app offers advanced features including notes, history, AirPrint, and built-in log files.

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Developed by 7th Gear, this iPhone calculator app is also compatible with the iPad and iPod touch. Check out our Calculator! app review for more details. When done, let us know if you think this is a good calculator app for iPhone and iPad.



Quickly Solve Complex Math Problems with Calculator!

Are you looking for a full-featured calculator with advanced features that are not available in Apple’s native calculator app? If you do, then you should download Calculator!

The best iPhone apps for scientific calculators 2021

Calculator! is a premium ad-free app that works completely offline. You can use it as a standard calculator for solving basic mathematical problems. It is also a scientific calculator that supports 30 complex operations.

After installing the app you can quickly load it from the widget screen. The app opens the default standard calculator mode with large number pad and clearly defined digit screen.

To open the scientific calculator, just tap the gear icon on the upper right corner of the screen to pull down the menu options. From there, you can switch the interface to scientific calculator.

You can use this calculator in portrait or landscape view. It also allows you to change the skin and appearance of the user interface. Just go to the settings screen and select any background you want. This option is only available for iPad users.

Calculator! displays the notes and history tabs at the left side of the screen. You can use the note tab to write additional notations or comments. You can also draw figures on the note tab using your finger.

To view previous calculations and frequently used expressions, just tap the history/log tab. The app will display all previous expressions and results and you can reuse them to solve new problems.

Quickly Solve Complex Math Problems with Calculator! image

Best Features of Calculator!

Calculator! offers an intuitive user interface with tabbed options to view notes and history. The main display features a large number pad and digit screen with elegant leather background. It allows you to change the background and texture of the screen.

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The app offers both standard and scientific calculators. It supports all basic mathematical equations and up to 30 complex operations. Calculator! supports a level of accuracy up to 75 significant digits. You can also use smart parenthesis and nested parenthesis to write more complex mathematical operations.

One of the best features of this app is the notes tool. It allows you to take down notes and write additional comments. The built-in note pad supports figure drawings so you can illustrate geometric expressions.

Calculator! offers a useful history and log tab so you can view previous calculations or review the expressions you created. The best part is that the app allows you to use past expressions to calculate new problems.

Best Features of Calculator! image



Pros and Cons


  • Easy to use with customizable user interface
  • Offers both standard and scientific calculators
  • Supports 30 complex operations
  • With built-in note tool
  • Allows you to view calculation history
  • Supports smart parenthesis and nested parenthesis
  • Works offline


  • No negative review

Final Thoughts

Calculator! is an advanced calculator app with customizable skins and background. It offers extra features including a built-in note tool, a history tab, and AirPrint support. It could very well become the best iOS calculator for your needs. 


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Cherry is a hard-working writer and an aspiring web designer who can't go a day without using her favorite apps. She's always on the lookout for new apps and enjoys discovering ones that others have overlooked.