iPhone owners told to update popular app that’s draining their battery as bosses apologise for ‘significant problems’

IPHONE owners have been urged to update a popular app as soon as possible after it was found to be draining their battery.

The app in question has been marred by numerous issues since rolling out in May.

GettyNew Sonos app been plagued by bugs since May[/caption] GettyUsers have complained of various issues, including failure to connect to devices[/caption]

Sonos launched a whole new app that works with its premium speakers on May 7.

But users have complained...