Simple Calculator

Contains adsIn-app purchases
4.3
65.5K reviews
10M+
Downloads
Content rating
PEGI 3
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About this app

[Key features]
Perform four fundamental operations and engineering calculations.

To start the engineering calculator, tap the engineering calculator icon.

To check the calculation history, tap the calculation history icon.

You can use all the previously inputted formulas. Tap the formula you need from the calculation history.

[Additional features]
To convert units, tap the unit calculator button. You can easily convert various types of
Currency,
Area,
Length,
Temperature,
Volume,
Mass,
Data,
Speed,
Time,
Date,
BMI,
Discount,
Age,
Numeral System,
GST,
Split bill,
Frequency,
Fuel,
Angle,
Pressure,
Force,
Power,
Loan


To change theme mode, tap the night mode icon.

To specify the time of night mode, select time range from settings.

To change color, chose the color you want from settings

To delete a history, long press on it in the history page

To change language, select preferred language from settings.

To play a beep or vibrate when pressing a button, go to settings.

To change numerals, select preferred numerals from settings (All numerals are supported)

To change number format, select the preferred format from settings

To change decimal places after the comma, select the number of decimal places from settings

To enable / disable full screen, enable / disable it from settings.

To keep calculation record, enable/disable it from settings.

To keep the screen on, enable/disable it from settings.
To hide an icon, go to settings.

*****
Last but not least, all of these features come in small size and it is completely free.
Updated on
Nov 1, 2025

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.
This app may share these data types with third parties
Location, App activity and 2 others
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.3
62.7K reviews
Jayne Johnson
January 2, 2026
Used to be ok, just a banner ad at the bottom. But now when you switch screens you get a full page ad, not every time but often enough to be really annoying. You can't get rid of it, you have to either wait it out or swipe up and shut the app down, then reopen it. To get rid of ads you have to pay, not just a one off payment but every month. No way I'm doing that! I've now uninstalled it and downloaded Samsung calculator. Free with no ads whatsoever, & just as good as this one.
10 people found this review helpful
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Carl
November 16, 2025
Riddled with ads, claims in-app purchases whilst happy to pay there is no option anywhere nor can you change anything .. . .. BEWARE of the 'vendor preferences ' in the consent screen as per usual there are hundreds that are on by default and takes a good 5 minutes to turn each one off
83 people found this review helpful
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Susan Sharp
September 4, 2023
😀💖 It's very good whilst at shop. Keeps a tally on items in supermarket, rather than how I used to add up in head. Very happy. No Internet required using in shop neither. I like the dark background, easy on eyes. I hadn't looked into making changes like format but thought today, after I shopped I'd try using smaller numbers. I feel it would be no good for me if I needed internet access whilst out and about. Thank you for providing it. 😉 Adverts, not noticed any as I don't always use at home.
714 people found this review helpful
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What’s new

We improved user experience and fixed known bugs.