Apple has been targeted in yet another patent infringement lawsuit, this time regarding the allowance feature offered through iTunes. An iTunes Allowance allows users to send a monthly iTunes Store credit to a family member, friend, or colleague

Restricted Spending Solutions has filed suit against Apple, claiming it developed a solution for a "controlled entertainment spending account" in 2001, a solution it gained patent of five years later.

The company claims Apple has had full knowledge of its patent since at least 7 July, 2005. It seeks damages for what the complaint terms "irreparable injury". It also wants Apple to stop offering allowances through iTunes.

The lawsuit was filed on 6 February.