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Download Simple Soroban Simple Soroban icon
Simple Soroban

This application is a simple Japanese abacus (soroban / そろばん). It has a free mode where you can use the abacus freely, and a challenge mode with 4 operations (addition, subtraction, one and two digit multiplication, and division) and 3 difficulty levels (easy, medium, hard) where you must race against the clock to perform calculations. Contain…

Free 1.3K 9.4

9.4 Users
Download Endless Tunnel Endless Tunnel icon
Endless Tunnel

A simple arcade-style game where you have to fly down an endless tunnel avoiding obstacles and collecting bonuses. As you level up, the obstacles become more difficult and the ship flies faster. Unlock achievements and compete with friends on the leaderboard! Integrated with Google Play Games. This is an open-source sample available at: http://git…

Free 561 7

7 Users
Download Curvature Watch Face Curvature Watch Face icon
Curvature Watch Face

Curvature Watch Face is a simple, modern watchface for Android Wear devices. It shows a zoomed-in view of a clock with minute represented as a colored part of the clock's edge. ATTENTION: Requires an Android Wear compatible device. This app doesn't appear on your phone, only on your watch. After you install the app, you will find it listed…

Free 29 7.6

7.6 Users


Btco has 5 apps available in Google Play.

Btco first app (Endless Tunnel) was published 3 years ago and the last one (Math Creatures from Space!) was published 1 year ago .

Android total downloads for Btco apps sum 61600 (the most downloaded Simple Soroban for Android).

The average users' rating for Btco apps is 4.08/5.

Google Play categories distribution:

  • -2 apps in the category Arcade
  • -1 apps in the category Educational
  • -1 apps in the category Education
  • -1 apps in the category Personalization