The broadcaster's latest figures suggest that PC traffic now accounts for 50% of the service's user base, marking a 15% year-on-year decline.
However, mobile and tablet requests surged over the last month with handheld devices now accounting for 24% of BBC iPlayer's audience.
Smart TV and set-top box services claimed a 16% share of the total viewer figures, while gaming consoles made up an additional 5%, leaving 5% unaccounted for.
Young Apprentice was the most popular show on BBC iPlayer during November, with the first episode of the latest series receiving more than 1.2 million requests.
The Secret of Crickley Hall, Some Girls, The Dark Charisma of Adolf Hitler and Dara O Briain's Science Club: Episode 1 also saw a high demand.
Watch previews of tonight's (December 20) Young Apprentice final below: