Calculator APK

Version 8.1.0 - apps.r.calculator
Last updated: 2020-04-08

APP Information

Download Version 8.1.0 (230081000)
Apk Size3.67 MB
App DeveloperR. Apps
Malware CheckTRUSTED
Install on Android6.0 and up
App Packageapps.r.calculator.apk

Download Calculator 8.1.0 APK

App Description

Calculator is apps,calculator,tools, content rating is Everyone (PEGI-3). This app is rated 4.5 by 2 users who are using this app. To know more about the company/developer, visit R. Apps website who developed it. apps.r.calculator.apk apps can be downloaded and installed on Android 6.0 and higher Android devices. The Latest Version of 8.1.0 Available for download. Download the app using your favorite browser and click Install to install the application. Please note that we provide both basic and pure APK files and faster download speeds than APK Mirror. This app APK has been downloaded 34969+ times on store. You can also download apps.r.calculator APK and run it with the popular Android Emulators.

Calculator allows you to perform simple and complex math tasks in a beautifully designed application.

• Choose the best colour for you from several options: amber, deep orange, red, pink, purple, deep purple, indigo, blue, light blue, teal, green, light green and lime

• Perform simple calculations such as addition, subtraction, multiplication, and division

• Do scientific operations such as trigonometric, logarithmic and exponential functions

• Define your own function

• Convert between binary, octal, decimal and hexadecimal numeral systems 

• Handling complex numbers such as √−2

• Real time graphing

• Save and modify values in the calculator memory

• See the list of your past 100 expressions and results with their dates

• Perform basic operation on the go with Android Wear


• To use advanced operators and functions, swipe to the left the coloured bar on the right side or hold your device sideways

• To call the graph panel, enter your expression with X

• To see your history, swipe down from the display

• To see the date of a past calculation, long click on the one you want

• To remove a past calculation from the list, swipe it right or left

• Go into the settings and choose the "Help" option for further instructions

This app is fully free of advertisements.

The source code was forked from the AOSP platform package. 

App ChangeLog

  • *Choose between normal and full keyboard layout in portrait mode (not available on every device)
    *Ability to restore the last content of the display on startup
    *Improvements on Android Wear

App Screens

Calculator App Screen 1Calculator App Screen 2Calculator App Screen 3Calculator App Screen 4Calculator App Screen 5Calculator App Screen 6Calculator App Screen 7Calculator App Screen 8Calculator App Screen 9Calculator App Screen 10Calculator App Screen 11Calculator App Screen 12Calculator App Screen 13


Apk scan results

Apk Scaned By TotalVirus Antivirus,apps.r.calculator.apk Was Pure And Safe.

Scan Stats:confirmed-timeout:0|failure:0|harmless:0|malicious:0|suspicious:0|timeout:0|type-unsupported:12|undetected:59|
Name:base.apk SHA-1:1c1bab982be6dbfa36ceef47fb13e8676d42d51c SHA-256:abf9b600b40f7f34d3a9c1e12f86a5687c737e0cd171c9e598726b7769598d18 SSDEEP:98304:fut5ScyfKARmX7YrnqtLn1W0ves62jFtw17Q:8Sc4RmX7V5/Fe1k File type:Android Magic:Zip archive data File size:3851324 Uncompressed Size:6671885 Contained Files :926 Contained Files By Type:MF:1,RSA:1,SF:1,dex:1,png:609,xml:271,


requires following permissions on your android device.

android.permission.ACCESS_NETWORK_STATE: Allows an application to view the status of all networks.
android.permission.INTERNET: Allows an application to create network sockets.
android.permission.VIBRATE: Allows the application to control the vibrator.
android.permission.WAKE_LOCK: Allows an application to prevent the phone from going to sleep.
apps.r.calculator.permission.C2D_MESSAGE: C2DM permission. Unknown permission from android reference Unknown permission from android reference Unknown permission from android reference
view network connections
Allows the app to view information about network connections such as which networks exist and are connected.

full network access
Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

control vibration
Allows the app to control the vibrator.

prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.

In-App billing
In-app Billing on Google Play provides a straightforward, simple interface for sending In-app Billing requests and managing In-app Billing transactions using Google Play.

receive data from Internet
Allows apps to accept cloud to device messages sent by the app's service. Using this service will incur data usage. Malicious apps could cause excess data usage.


Certificate Issuer:C:HU, O:R. Apps
Certificate Subject:C:HU, O:R. Apps






Interesting Strings


Older Versions

More Android Apps to Consider

Google Play Reviews

  1. nimbus421-avatar

    Automatic function graphing is amazing! So is the smooth transition into history, nice touch. I wish you could use greek letters in the function panel. Also, a black mode would be even better than dark mode, like the one in your compass.

  2. Richard Naylor-avatar

    After trying about 12 this is the better one, there are some with flashier graphics, but I found if I put this in:- 4 x 100 + 2 x 4 = I'd expected to see 408 which this App gives :) But some of the others actualy show:- 1608 ??? how rubish is that.

  3. A Google user-avatar

    Now has a delay and a full paged add upon opening. Utter rubbish. They ruined a perfectly good app, a calculator app needs to be up and running straight away!

  4. Strontium Dog-avatar

    it is flawed . you think its giving incorrect answer until you realise it is aligned wrong and the most significant numbers are off the left of the screen!

  5. A Google user-avatar

    Full-screen ads with a Calculator app? You have to be joking!

  6. Indu shekhar Mishra-avatar

    Indu shekhar Mishra


    Good app with multiple options....highly recommended

  7. Scr34mik-avatar

    cancer.. uses clickbaity ads tactic without ability to close the ad

  8. Vashawn Ware-avatar

    Great calculator I use it all the time!!

  9. Dane Hidden-avatar

    Contains ads? Why? It's a freaking calculator

  10. A Google user-avatar

    Too many ads..very bad

  11. Peter Munyiri-avatar

    I love how it stores previous calculations done. Nyc work

  12. Kenny Lam-avatar

    cool app, no ads

  13. Krishnamurthy Hegde-avatar

    Krishnamurthy Hegde


    Why is there ads?

  14. Osamudiamen Efosa Gideon-avatar

    Osamudiamen Efosa Gideon


    very good application so far.

  15. Najmus Sehar-avatar

    it takes time to open

  16. Md. Ganiul Islam-avatar

    Md. Ganiul Islam


    So nice n easy to use

  17. Very nice medam Kamal-avatar

    Very nice medam Kamal


    very good apps

  18. B K BAG-avatar

    It is a nice app.

  19. A Google user-avatar

    really really good

  20. Vidi F. Studios-avatar

    Vidi F. Studios


    The best for wear os

  21. Daudayal Daudayal-avatar

    Daudayal Daudayal



  22. Carlos Petrovitch-avatar

    Carlos Petrovitch


    Great aplication.

  23. Prashanta Karmakar-avatar

    Prashanta Karmakar



  24. laurence holder-avatar

    laurence holder



  25. Nuutslag negen-avatar


  26. Akash Sachdeva-avatar


  27. Kailash Mahat-avatar


  28. Jane Roque-avatar

    When you cheat at math class ;)

  29. A Google user-avatar

    Without pressing equal button it gives,it is very nice.

  30. Pengjun Su-avatar

    Unit bad not bad

  31. A Google user-avatar

    professional app

  32. Amarjot Singh-avatar

    complete garbage

  33. A Google user-avatar


  34. tajammul khan-avatar

    Awesome Calc

  35. KARTIK JUNEJA-avatar

    N nice

  36. Sujatha rachith-avatar

    Sujatha rachith



  37. surya teja-avatar


  38. Meraj Roliya-avatar


  39. Ibrahim Abdullah-avatar

    Ibrahim Abdullah



  40. Ganesan Venkataraman-avatar

    Ganesan Venkataraman



  41. Lokesh Immandi-avatar


  42. Fresh Beans-avatar

    Best calculator app out there. If you buy the ad free version, it loads very quickly with no annoying ads.

  43. Reza Arzpeyma-avatar

    بعد از مدتها یک ماشین حساب ساده وممیز دار که بلافاصله{قبل از استفاده کلید»»»(=مساوی) } نتیجه را نشان میدهد، پیدا کردم. واقعا از شما ممنونم. 👏👏👏

  44. Rafael Oliveira-avatar

    Rafael Oliveira


    Clean and very useful for those who wants more then the basic functions.

  45. Anoop-avatar

    It's good and worth having

  46. Maju Dhu-avatar

    Slow to open.

  47. Lolark Nath Sudama-avatar

    Lolark Nath Sudama


    Too much add

  48. avakin ß shincy ß-avatar

    avakin ß shincy ß


    Avísame i guess tho😜

  49. Debashish paul-avatar

    Its helpful and easy for use.

  50. Samuel Ojeda-avatar

    I just love it

  51. Wilfredo Cespedes-avatar

    Wilfredo Cespedes


    Easy to use

  52. sina sepehri-avatar

    Nice app

  53. Muhammad Fathul-avatar

    Muhammad Fathul



  54. marc leone-avatar

    Was great until a popup ad started appearing before the calculator can be used. Uninstalled.

  55. Nonkululeko Sitwayi-avatar

    Nonkululeko Sitwayi


    Easy to use and not many annoying ads

  56. A Google user-avatar

    Nine nesto dobro

  57. Nuklerbulldog games-avatar

    Nuklerbulldog games


    Thank you so very much for this amazing app

  58. A Google user-avatar

    C a l C u |

  59. Awesomedan K-avatar


  60. Jacques Burger-avatar

    Use to love this app, after the last updates it is very slow to open. It is a calculator for goodness sake. It use to open immediately like all the other calculator apps out there. But no, they had to make a worse. Do you know the saying, if it ain't broken don't try to fix it. So disappointed.

  61. Tommy Bunce-avatar

    Best simple calc in the Play store.

  62. Jignesh Solanki-avatar

    Jignesh Solanki


    Worse app .It takes 10 to 12 second to open . And above that ad comes first. I m uninstalling. Calculator is a app which open in a second. I think there r 100's of calculator apps which r better then this app with no ads.

  63. Sergiy Slobodyan-avatar

    Sergiy Slobodyan


    I know that you need ads to earn money, but sorry, it takes about 10 sec to load application on OnePlus3 and it opens chrome with ads. Ridiculous.

  64. Nikola Karailić-avatar

    Nikola Karailić


    It takes like 10 seconds to load now, it's almost unusable. There is better ways to implement ads, and you chose the worst one possible.

  65. A Google user-avatar

    It takes 3 seconds to load now...and sometimes when I am in a hurry I get first an add- I understand adds, but don't delay the access to the app itself. Uninstall

  66. Gerry Wilson-avatar

    I understand ads are needed​ to pay for it. Ads are everywhere and we can't escape them. If I was always in that big a hurry, I'd buy a pocket calculator. It works, that's what counts to me.

  67. Justin Hart-avatar

    Its simple

  68. A Google user-avatar


  69. sadiq saldulkar-avatar

    sadiq saldulkar


    Simple and best

  70. Drew Dawkins-avatar

    It's a calculator with a better ui and more features than the stock calculator on my phone. No complaints.

  71. some thingsfishy-avatar

    some thingsfishy


    Clear to read. Big buttons to push. Eat to use

  72. Reece Williams-avatar

    Worth paying for ad free app.

  73. A Google user-avatar

    Plus icon not work properly

  74. katy kennedy-avatar

    Easy to use.

  75. Donna Pipo-avatar

    Its easy to use. Good app

  76. Thanos Zygouris-avatar

    Thanos Zygouris


    Just got ads...uninstalling now

  77. Sidra Danish-avatar

    It cool bro

  78. A Google user-avatar

    Has history on it so I know when I added what bills up

  79. Sheik Danil-avatar

    Better than the default calculator on my phone!

  80. David Hollister-avatar

    David Hollister


    Works well and laid out nicely.

  81. THOMAS DUANE-avatar

    Excellent calculator. Simple easy to use

  82. Francis Lau-avatar

    Where is the CLR clear key after each calculation

  83. Adebayo Adetiba-avatar

    Adebayo Adetiba


    The goggle calculation is easy to use, accurate and fantastic.

  84. Vergil Meizikyn-avatar

    Vergil Meizikyn


    First calculator out of 20 that doesn't suck

  85. Joyce Fernandez-avatar

    Joyce Fernandez


    So easy to use! User-friendly.

  86. Gamingmode Ako-avatar

    Nicely put. Thanks developers!

  87. cozzaac-avatar

    Works great, easy to use.

  88. Andre Sparrow-avatar

    It pleased

  89. StarRush-avatar

    Super easy to use.

  90. vamshi krishna-avatar

    Excellent Ohhhh

  91. Shon Liow-avatar

    Simple use

  92. Ghanesh Natesan-avatar

    Ghanesh Natesan



  93. Milena Vollmar-avatar


  94. Eugene Platonov-avatar

    Eugene Platonov


    ads in calculator suck

  95. Saiful Islam-avatar

    Good. Need history edit and recalculate optiom

  96. Mark McDow-avatar

    Sorry, changing my rating following the forced addition of ads across the top

  97. Ved Chaudhary-avatar

    Thank you for this app

  98. Nitesh Singh-avatar


  99. Elya Wygoda-avatar

    Great calculator, would give it five stars if it had an option to scroll through the decimal expansion(like in the default Google calculator)