Is TTerm available for the iPhone?

No. TTerm is currently only available for iPad. Additionally, TTerm does not support Android devices.

Turbosoft's web to host terminal emulator, TTerm Connect may provide an alternate host connectivity solution for platforms that TTerm for iPad does not cater to such as iPhones and Android devices. Note that TTerm Connect is a server based, zero client install product, intended for enterprise users. For more information refer to the TTerm Connect product page.