After the creator of Flappy bird decided to take down his popular game from App store, there are many clones of flappy bird popping out in all platforms.
Those who have installed the game can still enjoy playing while other have to look for app clones from store. Other option which is available for all devices(even nokia & blackberry) is that you play Flappy bird on browser by visiting the following link.
1. HTML5 version of Flappy bird : http://flappybird.io/
If you know any other similar versions of flappy bird, please let me know in comments.