We don't have one ourselves, for either Android or iOS.
The last time we checked, there was a third-party SSH client for the iPhone and iPod Touch called pTerm, which is apparently based on PuTTY. (This is nothing to do with our similarly-named pterm, which is a standalone terminal emulator.)
We don't know of any Android SSH application based on the PuTTY code. (There are Android SSH applications based on other implementations.)