iBiff is an iOS application that notifies new mail arrivals with chime and vibrations. You can set mail inquiry interval in seconds and number of times vibrate for incoming new mail.
Support imap4 mail box such as Gmail ,AOL mail,GMX mail. Supports secure connection and LOGIN/PLAIN authentication.
If your mail account is Gmail, please set the imap server name to imap.gmail.com and the userid to your full Gmail account including @gmail.com part.