Calculator SR11.0.16 - Get APK

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Publisher Description

New! This app is a photorealistic simulation of the "Schulrechner SR1", a pocket calculator made in GDR (German Democratic Republic / East Germany).
Compared to the original calculator only the frames around the entire device and around the display were reduced for reasons of space.

The app comprises numerous of frequently used functionalities and obeys the "order of operations".
The keys give optical (key color), acoustic (key sounds) and haptic (vibration of the device) feedback.
Furthermore, the back and an interior view of the original calculator can be displayed (completely without function 😀).

The "Schulrechner SR1" was a pocket calculator with a liquid crystal display (LCD), which was manufactured by VEB Mikroelektronik "Wilhelm Pieck" Mühlhausen (Publicly Owned Operation Microelectronics "Wilhelm Pieck" in Mühlhausen / Thuringia).
The SR1 was subsidized for students and identically distributed on trade as "MR 609".
It was produced from the early 1980s and used in schools since the school year 1984/85.
The books for teaching mathematics in the GDR referred to this calculator.

Features:
• Basic arithmetic operations: Addition, subtraction, multiplication, division and the calculation of powers (the order of operations is observed!)
• Root, square, percent and reciprocal functions
• Trigonometric functions: sine (sin), cosine (cos), tangent (tan), as well as the corresponding inverse functions arcsine (arcsin), arccosine (arccos) and arctangent (arctan); angles can be entered in degrees (DEG), radians (RAD) or gradian (gon) (GRD)
• Logarithmic functions: Natural logarithm (ln) and commomn logarithm (lg), as well as their inverse functions (i.e. power to base e and 10, respectively)
• π (Pi)
• Memory functions
• Exponential representation

Operation notes:
• By tapping the display, the displayed value 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 Calculator SR1 as your daily tool for all your calculations!

We are very happy about positive ratings, comments and recommendations and - of course - the purchase of "
Calculator SR1 pro
"

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

Languages of this app:
English, Spanish, French, Italian, Portuguese, German



About Calculator SR1

Calculator SR1 is a free app for Android published in the System Maintenance list of apps, part of System Utilities.

The company that develops Calculator SR1 is Alexander Vollmar. The latest version released by its developer is 1.0.16.

To install Calculator SR1 on your Android device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2020-05-28 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Calculator SR1 as malware as malware if the download link to de.alexvollmar.sr1_calculator is broken.

How to install Calculator SR1 on your Android device:

  • Click on the Continue To App button on our website. This will redirect you to Google Play.
  • Once the Calculator SR1 is shown in the Google Play listing of your Android device, you can start its download and installation. Tap on the Install button located below the search bar and to the right of the app icon.
  • A pop-up window with the permissions required by Calculator SR1 will be shown. Click on Accept to continue the process.
  • Calculator SR1 will be downloaded onto your device, displaying a progress. Once the download completes, the installation will start and you'll get a notification after the installation is finished.

Program Details


General

Publisher
Released Date
2020-05-28
Languages
English

Category

Category
Subcategory

System requirements

Operating systems
Android

Download information

File size
3.5 MB
Total downloads
0

Pricing

License model
Free
Price

Version History


Here you can find the changelog of Calculator SR1 since it was posted on our website on 2021-01-07. The latest version is 1.0.16 and it was updated on Apps112 on 10 October, 2026. See below the changes in each version:

version 1.0.16

posted on 2020-05-28

★ Small changes, corrections

Disclaimer


External Download


We do not host Calculator SR1 on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Galad and passed their terms and conditions to be listed there. We recommend caution when installing it.

The APK Download link for Calculator SR1 is provided to you by apps112.com without any warranties, representations or guarantees of any kind, so access it at your own risk.

If you have questions regarding this particular app contact the publisher directly. For questions about the functionalities of apps112.com contact us.





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Users Rating:
  0.0/5     0
Downloads: 0
Updated At: 2026-10-10
Operating System: Android
License Type: Free

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