Heimdall is a cross platform open source program which is developed to flash firmware for Samsung smartphones. This tool support for Windows, MAC and Linux platforms. Heimdall interact with Samsung smart phone protocol.
This software is not reviewed yet.
Snappy Bird is freeware which has developed for iOS devices as well as Android devices.This game has many features rather than Flappy Bird.Therefore if you are Flappy Bird user, download Snappy Bird and see the difference of these two games.