Calculator ×

Name: Calculator ×
Rating: 4.5 (143 reviews)
Author: DOUBLE U s.r.o.

let's reinvent the calculator

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

143 Ratings
Age Rating

4+
Years
Category

Utilities
Developer

DOUBLE U s.r.o.
Language

EN
+ 9 More
Size

17.3
MB

Designed exclusively for today's touch-screen devices, this calculator app represents a groundbreaking paradigm shift, leaving behind the outdated design patterns of mechanical calculators. We have meticulously crafted a new design from scratch, keeping modern touch-screen devices at the forefront of our innovation. • Tape Log: All your calculations are securely stored in the tape log, ensuring you never lose track of your numerical journey. • Calculation Management: Effortlessly reuse, copy, or share calculations to integrate them seamlessly into your work or daily life. • Formula Evaluation: Enter entire formulas in one line for swift and accurate evaluation, simplifying complex calculations. • iPad Multitasking: Experience true productivity with iPad multitasking support, enabling you to perform calculations while using other apps through Slide Over and Split View. Calculator Pro represents a powerful departure from traditional calculators, offering a tailored experience for touch-screen devices. Download now and embrace a new era of calculations with maximum control and power at your fingertips. Terms of Use: https://doubleuapp.com/privacy/terms.html

Ratings & Reviews

4.5

out of 5

143 Ratings

The calculator I was looking for.
09/07/2019
blanktimes
This is the calculator I was looking for. I recently subscribed to the ‘removed ads’ version because this is the one calculator app that had the features I was looking for. For example, I can easily see the last inputs because there is a history panel which you can scroll up and down with the swipe of a finger. I also enjoy the ‘last’ button feature that allows me to do calculations in where I can use my previous calculated sum—multiply/subtract/etc it by an even prior sum, easily accessible via the history feed. Thanks.
The calculator I was looking for.
09/07/2019
blanktimes

This is the calculator I was looking for. I recently subscribed to the ‘removed ads’ version because this is the one calculator app that had the features I was looking for. For example, I can easily see the last inputs because there is a history panel which you can scroll up and down with the swipe of a finger. I also enjoy the ‘last’ button feature that allows me to do calculations in where I can use my previous calculated sum—multiply/subtract/etc it by an even prior sum, easily accessible via the history feed. Thanks.
Solid Basic Calculator
11/18/2019
LilacDoe
This let’s you fully type out multi-expression math problems. It can’t do anything too fancy, it’s just a solid replacement for the basic calculator. Also, if you close the app, the previous expressions stay in your history (I’m not sure about restarting the phone though).
Solid Basic Calculator
11/18/2019
LilacDoe

This let’s you fully type out multi-expression math problems. It can’t do anything too fancy, it’s just a solid replacement for the basic calculator. Also, if you close the app, the previous expressions stay in your history (I’m not sure about restarting the phone though).
Finally no need to rotate.
07/22/2019
GR747
Thank you for creating the only calculator app that gracefully gives you more options without having to rotate the screen awkwardly. Coming from a TI 83 background, this is perfect for basic scientific calculating needs.

Developer Response
Good point, thank you. We too believe you shouldn’t need to rotate for advanced functions.
Finally no need to rotate.
07/22/2019
GR747

Thank you for creating the only calculator app that gracefully gives you more options without having to rotate the screen awkwardly. Coming from a TI 83 background, this is perfect for basic scientific calculating needs.
Developer Response 08/08/2019
Good point, thank you. We too believe you shouldn’t need to rotate for advanced functions.
Finally!
04/15/2022
StopBadApps
Had to look all over to find a memory calculator that wasn’t written by retards who never understood 3rd grade math.
Finally!
04/15/2022
StopBadApps

Had to look all over to find a memory calculator that wasn’t written by retards who never understood 3rd grade math.

• new Variables screen in the menu: see all your variables, insert them into a calculation, copy, rename or remove them • add notes to your calculations (touch and hold a calculation) • the calculation menu now shows when a calculation was made • new app icon for iOS 26 • improved layout on iPhone Duo, both folded and unfolded • fixing an issue where the wrong log was being displayed • improvements and bug fixes If there is a problem, please let us know via the app menu. If you like the app, please leave a positive review. Thank you for all the feedback, reviews, and support.

Version 2.2.1 Oct 19

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Accessibility

Information

Seller: DOUBLE U s.r.o.
Size: 17.3 MB
Category: Utilities
Compatibility: Requires iOS 15.0 or later.

iPhone
Requires iOS 15.0 or later.

iPad
Requires iPadOS 15.0 or later.

iPod touch
Requires iOS 15.0 or later.

Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English and 9 more

English, Czech, Dutch, French, German, Polish, Portuguese, Slovak, Slovenian, Spanish
Age Rating: 4+

4+

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