The device and image composition software was created in collaboration with Blue Yeti and the agency Téra-création. Prélud created the custom unit.
Since its implementation, it has recorded 70,000 creations. During peak periods, the guestbook receives up to 6,000 contributions per month.
The POPBook was updated in 2019, with the release of the digital service in two versions: POPBook mobile, integrated into the building tour app, and POPBook Studio, a genuine post-tour creative tool.