CalcNote - Notepad Calculator

9.31K reviews
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About this app

CalcNote is a new generation of calculator designed for the smart phone.
Just type a expression, the answer will be displayed instantly. No need to tap equals.
It works like notepad or your word processor, you can see multiple questions and answers all at once.
It's like a spreadsheet but much easier and simpler.
If you make a mistake, you don't need to start again, you just fix the wrong expression.

Instant calculator & realtime results
CalcNote will instantly evaluate any mathematical expression and display result in real-time.
With a Notepad-style interface you write operations on each line and see results instantly.
You can combine text-lines with calculations.

Multi-line calculations & references
Every line in CalcNote is evaluated so you can write different operations on each.
It even allows referencing lines as in Spreadsheet so you can do multi-line combined calculations (i.e. $2+$3 adds up the results from line 2 and 3).

Different keypads with operations
Swipe right-left to switch between different keypads with multiple operations you can perform.
Regular mathematical operations, logarithmic, trigonometric functions (i.e. sin, cos), permutations/combinations as well as a percentage calculator and unit converter.

Save & Export
In CalcNote you can organize your calculation sheets, save them individually and even export expressions if you want to use them elsewhere (i.e. in Spreadsheet, in a scientific paper, etc.).

Customize appearance
You can customize CalcNote by changing its background/text color, showing/hiding line numbers, fonts, display format, customize the keypad layout and much more.

List of other features
- Supports mix text and numbers in your calculations
- Supports a line reference
- Supports declaring a variable inline
- Percentage calculations
- Modulo operation
- Supports hexadecimal, octal and binary operations
- Calculate Power, Factorial, Permutations Combinations, Square root and Cube root
- Trigonometric functions
- Aggregate functions
- Logarithm, Natural logarithm, Natural exponential function
- Unit conversion (Area, Length, Weight, Speed, Temperature, Time, Volume)
- Currency conversion (Supports 156 currencies and 5 cryptocurrencies)

Please refer to online manual for more details

This is a free version of CalcNote, which displays ad at the top of the screen.
If you'd like to remove ads, you can upgrade to Pro.

burton999 makes no warranty as to the accuracy or reliability or suitability of any calculation results or information provided through the CalcNote. burton999 is not also responsible for any damages, direct or indirect, which may occur by the calculation results or information provided through the CalcNote.

CalcNote aims to offer Soulver on Android.
Special thanks go to Zac Cohan, the creator of Soulver.

If you have any concerns, feedback, or questions email me at
I hope this app will be helpful for you.
Many thanks.
Updated on
Nov 3, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted
9.31K reviews
Lauretta Scribner
March 21, 2021
I rarely want to take the time to provide a review, but this app is the exception. It is so awesome 😎. I use it to maintain a monthly budget, as well as keep track of checking, etc accounts - especially my credIt cards!!! It is so flexible in being able to use text or numbers or calculations. I wish I could include a pic of what I have creatively designed. It is so easy to quickly enter the amount of money spent, credited, deposited or transferred while on the go! THIS IS MY FAVORITE APP❣️
22 people found this review helpful
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A Google user
July 27, 2019
It has a lot of features, the ability to backup files, and an almost needless ability to personalize thematically. The ads are a little bit of an eye sore, but i haven't found them intrusive, and the app is free for a good quality. So no real complaint. The only thing I might like is a tutorial? But maybe there is one already.
4 people found this review helpful
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A Google user
February 25, 2020
I love CalcNote. I like being able to use the alphabet & numbers, for taking notes on each mathematic step. I'm thankful for it very much. It's simplicity is my favorite part. I also like how you can save it in separate files. Thank you for making such an app! The only thing I'd change is, if possible, making it so it can automatically save in Google drive, rather than the device.
15 people found this review helpful
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burton999 calculator developer
February 25, 2020
Thank you for using CalcNote and writing a nice review. I provide CalcNotePlugin for Drive as a paid app ($0.99). This plugin allows you to automatically backup your files and drafts to Google Drive. Best regards,

What's new

### v2.24.80
1.Fixed a bug that unit conversion for work not working on High-Precision mode.

### v2.24.79
1.Added a search function to the file manager.
2.Android 13 is now supported.
3.Added new commands 'Move cursor to the beginning of the file' and 'Move cursor to the end of the file'.
4.Added small improvements to the user experience.
5.Improved the user defined action.
6.Fixed some minor bugs.

### v2.23.78
1.Fixed some minor bugs.