Electric Pocket’s new MailTones iPhone app offers the ability to set a different email alert for each friend, family member or colleague in their address book.

In the words of the developer: "MailTones helps to distinguish high priority emails your boss or partner from lower priority emails from friends or group email lists".

The app comes with a collection of 25 tones ranging from discrete bells to horns and buzzers and can be set for a specific contact or one for all incoming emails from a particular domain - making it easy to recognise incoming emails from work colleagues or customers.

Additionally, it can also filter and provide custom tones for messages which include specific words in the subject line.

There's more info on which mail services work with MailTones over at mailtones.com, while the app is available at the App Store for £1.79.