The application is intended for professionals who wish to take geotagged and time-stamped photos of their construction site and offer the C2E bonus.With Gestió Thermostat you can:1- Take reliably geolocated and time-stamped photos, within the meaning of Decree No. 2011-434 of April 20, 2011 relating to the time-stamping of letters sent or received electronically for the conclusion or execution of a contract and cannot be modified.Each photo taken from the application is integrated into a PDF with an integrated timestamp in PAdES format (blue signature banner visible in Adobe Acrobat Reader). The timestamp is eIDAS qualified by a trust service provider qualified by ANSSI.The PDF will also contain information related to photo taking such as the site address, GPS geolocation coordinates, etc. and optionally the C2E file number.Example of use :You need to take photos of the equipment installed as part of the C2E “Room by room regulation” boost. The photos taken from the Gestió Photo application will allow you to meet the expectations of those obliged/delegated.2- Let their customer benefit from the C2E bonus via Gestió.When connecting to the application, the professional has the possibility of carrying out a simulation to find out the amount of the C2E bonus that his client could benefit from. And if he wishes, benefit from the support of Gestió to obtain the C2E bonus