GUEST Hotel Software

iSystems Information Technologies SL

GUEST is the most complete and easy to manage hotel management software

This application is available only in Spanish. It will be in English soon.

GUEST is suitable to any type of hotels, from a small agrotourism, to a large hotel chain of hundreds of hotels.

GUEST is much more than a PMS, it is a complete Hotel Management Suite that integrates within the same environment all the necessary tools (PMS, CRS for call center and integration with channel managers), CRM for management of the relationship with customers and Booking Engine for direct sales.


  • Management of Rates and Contracts.
  • Reservations
  • Invoices and Collections
  • Control of petit cash
  • Spa Management
  • Lounges and events
  • Warehouse management (purchases, stocks, inventories, etc.)
  • Point-of-sale terminal (POS) software
  • Reporting
  • Integration with accounting systems (Microsoft Dynamics NAV, A3, Contaplus, ...)