Landfiles provides the agricultural world with a tool to replace WhatsApp, for structured exchanges and manual data collection by groups. - Very intuitive application dedicated to the agricultural world - Web and mobile platform with similar functionalities - The mobile application fully manages weak networks, synchronization is done as soon as the network is found - Easily share photos and data - The facilitator is integrated into the exchanges, without having to act as a relay - History of publications classified on the farm, or on the plot, on trial.... - Descriptive data of the plot, the farm - Comments related to a publication: no overloading of the feed - Efficient search system to easily find observations - Possible configuration of data entry forms adapted to the group - Export of these data to Excel possible - The advisor can initiate the farmer's farm, post data, and then invite the farmer as the administrator of the farm - Possible setting of group notifications on the mobile app - Protected data, no advertising or commercial use - A single interface to manage its different groups - Web platform that allows the export of photos - A new member has access to the history - Short or long exchanges possible