Help/please fix

So i have terraria on my ipad and the version is 1.2 and i cant find a 1.3 option to upgrade anywhere. I wanted to make a spawner farm, but you need a one second timer and i believe because it is 1.2 i cant make it, yes i know its a table and chair recipe, it doesnt show up anywhere. Also after about 10-15 minutes of the app being open it crashes, sometimes opening up the big map of the world crashes it faster idk why help.

Dhhkiajdjgkdkjsjcjj356 about Terraria, v1.2.12785