Bolek Calculator

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New! This app is a photorealistic simulation of the Polish pocket calculator "Bolek".

The app comprises frequently used functionalities and obeys the order of operations (unlike the original pocket calculator).
The keys give optical (key color), acoustic (key sounds) and haptic (vibration of the device) feedback.
Furthermore, the back of the original calculator can be displayed (completely without function! ☺)

The Elwro 441 "Bolek" was a pocket calculator with an LED display which was manufactured by "Wrocławskie Zakłady Elektroniczne Mera-Elwro" in Wrocław/Poland (about 1978/79).

• The 4 basic arithmetic operations: Addition, subtraction, multiplication and division (the order of operations is observed!)
• Root, square, percent and reciprocal functions
• Memory functions

Operation notes:
• By tapping the display of the calculator, the value displayed is copied to the clipboard (and is available for further use in other apps).
• Swiping from the left edge to the inside, the menu is displayed:
Here you can find among other information the settings for the sounds played by the app and the vibration.

Use the "Bolek Calculator" as your daily tool for all your calculations!

The "Bolek Calculator" is part of a series of historical pocket calculators: The two others are Calculator SR1 and Calculator MR 610.

We are very happy about positive ratings, comments and recommendations and - of course - the purchase of "Calculator Bolek 610 pro"
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What's New

★ Small changes, corrections
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Additional Information

May 28, 2020
Current Version
Requires Android
4.3 and up
Content Rating
Offered By
Alexander Vollmar
Oderstr. 29 12049 Berlin
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