The move gives the Panthers the experienced corner kick they coveted after James Bradberry signed as a free agent with the Giants.
Apple has started 48 games in four seasons in the NFL and has 233 tackles, three interceptions and three fumbles, but has never made it to the 10th overall selection in the 2016 Ohio State draft.
He started 15 games with the Saints last season and had 58 tackles and a fumble. He spent his first two and a half seasons with the Giants before being traded in the middle of his third NFL season with the Saints.
Given Carolina’s lack of experience in the cornerback position, Apple has a chance to start right away. Carolina returns last year’s 2018 second-round pick Donte Jackson, and drafted cornerbacks Troy Pride Jr. in the fourth round and Stantley Thomas-Oliver III in the seventh month last month.