The iPhone keyboard has support for typing characters like ¿ by selecting a similar character on the keyboard and holding the key for a short time. However, there doesn't seem to be a way to type a ~ character (a tilde). How does one do that?
On keyboard, press the 123 button to bring up numbers. From here press #+= to bring up more characters. ~ is the 4th from the left, second row.
Answered on an iPhone :D
It depends on the language of the keyboard. In the German keyboard it is the third from the left, second row. In the English keyboard also. And in the SwissGerman also, and in the Dutch also.