Spain's antitrust regulator said on Wednesday it had opened an investigation into possible anti-competitive behaviour by Apple's app store.
The CNMC, as the regulator is known, said Apple might have incurred in anti-competitive practices when imposing unequal commercial conditions on developers of mobile applications sold at its app store.
The practices could be considered a very serious violation of the competition law and thus could be punished by a fine worth as much as 10% of the company's global revenues, CNMC said in a statement.