Apple tried to conceal documents showing it deliberately degraded the performance of old iPhones, a tribunal starting this week will hear, in a move that, if successful, could leave millions of consumers in the UK in line for compensation.

On Friday, the UK’s Competition Appeal Tribunal will hear lawyers for a class action argue the tech giant is trying to avoid releasing information that they say shows it chose to use software updates to ‘throttle’ older iPhones to conceal problems with their batteries.

They argue Apple is trying to hide this from UK consumers by claiming commercial sensitivity.

But Apple insists that it is legally entitled to keep confidential information out of the public domain.

The tech giant, led by Tim Cook has repeatedly tried and failed to have the case thrown out since it was launched in 2022, with a hearing taking place next year.