A full version app for Android, by CurryGames.

2248 is a free android game that offers simple yet addictive gameplay. In this game, connecting numbers can be done in any of the eight directions. Slide the number up, down, left, right, or diagonally in any of the eight directions. Search and connect two same numbers as a start. The next connected number can be the same or multiplied by 2. The result is a multiple of 2 for all connected numbersWith casual gameplay and free-to-play, this number connection game is perfect for killing time. It’s easy to start but hard to end, so get ready for addictive gaming. Once started, it is difficult to end!