Bolek Calculator pro
Bolek - A beautiful and simple calculator in the design of the 70s
Alexander Vollmar · de.alexvollmar.bolek_calculator_pro
UpdatedNov 14, 2025
PublishedJun 12, 2024
Packagede.alexvollmar.bolek_calculator_pro
MD5085563f0dc29300fab31af20209af0b0
SHA1 (signer)D2:42:61:3F:21:08:C9:E2:7B:FB:EE:4B:B5:CA:02:01:BA:28:CA:7F
Signed byCN=Alexander Vollmar
Malware scanTRUSTED
Contact[email protected]
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What's new
★ Small changes, corrections
Description
New! This app is a photorealistic simulation of the Polish pocket calculator "Bolek".
With the "Bolek Calculator pro" you enjoy a completely ad-free version of the app and support the further development of this project.
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).
Features:
• 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 pro" 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 and comments!
With the "Bolek Calculator pro" you enjoy a completely ad-free version of the app and support the further development of this project.
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).
Features:
• 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 pro" 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 and comments!
Required features
- Faketouch android.hardware.faketouch
Permissions (2)
Bolek Calculator pro requests the following Android permissions:
- Vibrate android.permission.VIBRATE
- De Alexvollmar Bolek Calculator Pro Dynamic Receiver Not Exported Permission de.alexvollmar.bolek_calculator_pro.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
