How they compare
Both are built around the gloryhole wall.
GloryholeSwallow has filmed adult women giving oral through a gloryhole since 2011, more than 950 scenes in a raw amateur style, and still adds about one a week.
Mad Gloryholes films group gloryhole parties in a club setting, with gangbangs and toys, released as numbered episodes. It has about 95 short scenes since 2022 and adds about one a month.