Emulator of "Electronika MK 61" and "Electronika MK-54" RPN programmable calculators.

Hint 1: touch calculator's indicator to toggle slow/fast mode. Indicator's blinking looks better in slow mode.
Hint 2: you can choose between MK-61 and MK-54 using menu option that becomes visible when calculator is switched off.


Among USSR programmable calculators of 1980-s (B3-34, MK-54, MK-56, MK-61, MK-52), MK-61 was the most selling one.

Calculators are emulated on microcode level so they behave exactly like the original devices, including all non-documented features and inaccurate calculations. For ease of use application features saving and loading emulation states.

This app's emulation engine Java code is based on C++ source of Felix Lazarev's emu145 project.
Emulation was highly optimized for speed and should run in real time on any phone.

App Information MK 61/54

  • App Name
    MK 61/54
  • Package Name
  • Updated
  • File Size
    318 k
  • Requires Android
    Android 1.6+ (Donut, API 4)
  • Version
  • Developer
  • Installs
    10,000 - 50,000
  • Price
  • Category
  • Developer
  • Google Play Link

MK 61/54 Version History

Select MK 61/54 Version :
  • 2.3 (230)
  • MK 61/54 2.3 (230) APK File

    Publish Date: 2017-05-15
    Requires Android: Android 1.6+ (Donut, API 4)
    File Size: 318 KB (APK file)
    File APK Md5: 2a1b3fa66749b0198a84c23890a2e337
    File APK Sha1: 0e855806bbe0cbed57124472c3d3292623f383da
    APK Signature: 229ce68be1fe273cf9395a2389efb48cdfb76464
    What's new :
    v2.3: - fixed state saving instability on leaving app - fixed layout resizing glitch - switching calculator off and state saving/loading became faster - added user preferences for: * type of on/off and angle mode switches (checkbox/radio buttons or slider) * vibration intensity * buttons outline * labels text size

Stanislav Borutsky Show More...

MK 61/54 APK


Stanislav Borutsky
Emulator of "Electronika MK 61" and "Electronika MK-54" RPN programmable...

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