Simply Owners have carefully calculated its one off annual fee to ensure that sufficient revenues are generated to invest in the advertisements necessary to compete with the current monopoly companies to attract holidaymakers. Further, remaining significantly cheaper than those larger companies. Also, by not charging the holidaymakers a booking fee (a 10% - 60% addition with some companies) the holidaymakers get better value for money.
Simply Owners is a one-way integration, meaning updates from Prop-Sync will reflect on your Simply Owners calendar using iCal.
NB: iCal based integrations are not real-time and carry delay in availability updates from showing.