Calculator with instant conversion function. Can "Undo" & "Redo". No Scientific.
About Only One Calculator
Only One Calculator is a tools app developed by Lazy Smart Studio.
How many times has Only One Calculator been downloaded?
Only One Calculator has been downloaded 10 thousand times. In the last 30 days, the app was downloaded 27 times.
What is the rating of Only One Calculator?
Only One Calculator has no ratings yet.
Is Only One Calculator free?
Only One Calculator is free to download. The APK download size is 8.96 MB. The latest version available is 1.2.4. The last update was on October 24, 2025.
What are the requirements for Only One Calculator?
Only One Calculator requires Android 4.4+ or higher. The app has a content rating of Everyone. The app has been available on Google Play June 2019.
Description
This calculator has instant currency exchange and unit conversion. With the "Undo" and "Redo" functions, you can go back to the previous steps and edit it.
Select a specified currency exchange to be fixed to the calculator. When you input a number or expression, you can instantly know the conversion result, which is convenient for travelling and shopping.
** Note: No Scientific Calculation Function **
Features： • Can select a specified currency exchange and pin it to the calculator. During the input process, you can instantly know the exchange result, which is convenient for travel and shopping. • With the "Undo" and "Redo" functions, the calculator allows you to go back to the previous steps. It keeps up to 300 input steps for your review. So you don't have to worry about re-entering because of any mistakes during input. • Can choose between more than 160 currencies, and the exchange rate is updated manually or automatically per hour, day, or week. • The calculation expression and calculation result are recorded when pressing the equal button or clear button. You can insert the calculation expression or calculation result from a history record into the current calculation expression. • Can edit a very long calculation, and cursor control is very convenient and smooth. • During the input process, the calculation result will be shown instantly without pressing the equal button. • In addition to currency exchange, there are other conversion functions for length, weight, area, volume, and temperature. • If you need the Memory Buttons on traditional calculators, you can add them into the keyboard layout.
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Very convenient to use and has a lot of useful functions and convertors, could be helpful when traveling. I really like it, thank you, Alex!
★★★★★Sunny Tsui· Mar 27, 2021
It is the best calculator App I have ever used. Very practical!
★☆☆☆☆Bhavin Patel· Mar 7, 2020
Why are there no scientific functions? Even some of the most basic calculator apps have at least SOME scientific functions. This is just awful. If I could rate this 0 stars I would. Hell, I'd rate this negative stars if that was even possible. But, unfortunately, I can't do either of those things. So here, take this lone one star for your god awful app. You've earned it. See ya! EDIT: Why would anyone get a calculator app that has fewer functions? Where's the benefit? You puzzle me greatly...
Google Play Rankings for Only One Calculator
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Technologies used by Only One Calculator
Only One Calculator is requesting 10 permissions and is using 7 libraries.
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