ATGO- Integrated Activity Management is an application for mobile devices that provides the user, at a single access point, with the possibility of carrying out operations and consulting the data of professional activity registered with the Tax and Customs Authority. Briefly, ATGO allows: - Issuance of invoices, receipt invoices or receipts - Cancellation of invoices, receipt invoices or receipts - Creation of templates related to the documents issued - Sharing evidence - Sort/Reclassify expenses