Btco Apps

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Simple Soroban 2.0.4
Btco
This application is a simple Japanese abacus (soroban / そろばん). Ithas a free mode where you can use the abacus freely, and achallenge mode with 4 operations (addition, subtraction, one andtwo digit multiplication, and division) and 3 difficulty levels(easy, medium, hard) where you must race against the clock toperform calculations.Contains tutorials for:* basic concepts*addition* subtraction* one-digit multiplication* two-digitmultiplication* divisionAlso has a custom challenge mode where youcan set the number of questions, type of questions anddifficulty.(This is just a hobby project I'm doing for fun. Thisapp is free and doesn't have in-app purchases or ads).[PERMISSIONSUSAGE]This is a description of how permissions are used in thisapp.Access Network State / Internet: like most apps and sites, thisapp sends anonymous statistics (Google Analytics) to help improvethe app. The user can opt out from the Settings screen.Vibrate: Theapplication can vibrate the phone to give user feedback. This canbe enabled/disabled in the Settings screen.
Rectangularity 1.0.8
Btco
Rectangularity is a fast paced retro-style 2Darcade game where you are a good rectangle fighting evilrectangles. Fight for your survival wave after wave. It has dualstick action, so you can move and shoot independently. Unlockachievements and compete with your friends on leaderboards!This game is totally free and I wrote it just for fun as a hobby-- so there are no ads, no in-app purchases, no premium items oranything of the kind.I should mention this game is hard. I mean, the first few wavesare kind of easy, but it gets difficult pretty quickly to keepthings interesting. You will need quick reflexes!The graphics are pretty minimalistic. I enjoy the old retropixel based games, so I tried to make it in that style, but usingrectangles.Joystick support: this game supports most Android joysticks withtwo analog sticks.
Math Creatures from Space! 1.0.0
Btco
How do you beat monsters from outer space? With mental math, ofcourse! Type the answer to the math problem that appears on top ofeach enemy in order to defeat it. Defend your city and defeat theenemies before they land on the ground!This game exercises the 4basic arithmetic operations (addition, subtraction, multiplicationand division). Try your mental math skills in 36 challenginglevels!This is a hobby project that I do for fun, so there are noads or in-app purchases in this game.
Curvature Watch Face 1.0.2
Btco
Curvature Watch Face is a simple, modern watchface for Android Weardevices. It shows a zoomed-in view of a clock with minuterepresented as a colored part of the clock's edge.ATTENTION:Requires an Android Wear compatible device. This app doesn't appearon your phone, only on your watch. After you install the app, youwill find it listed in the Android Wear app, or you can select itas your watch face directly by holding down your watch's screen andselecting Curvature.
Endless Tunnel 1.0.01
Btco
A simple arcade-style game where you have to fly down an endlesstunnel avoiding obstacles and collecting bonuses. As you level up,the obstacles become more difficult and the ship fliesfaster.Unlock achievements and compete with friends on theleaderboard! Integrated with Google Play Games.This is anopen-source sample availableat:http://github.com/playgameservices/android-samplesYou cancontrol the ship by dragging the screen (accelerometer is comingsoon). Also, this game supports most joysticks and trackpads.Note:this is my personal build of the sample, and there's nothingofficial about it in any capacity! I'm publishing it just for funand to see if people can beat my high score :-D Also, it helps mefind bugs in my code. So please report any crashes you get!