**The problem it solves** Professional vacation rental managers need a PMS with strong API access and owner-facing financial transparency to manage homeowner relationships at scale. **What Smily does** Smily, formerly BookingSync, is a French vacation rental PMS for professional property managers with multi-property portfolios, primarily across Europe. It provides reservation management, multi-channel OTA distribution, direct booking website tools, owner portals, native payments, and a REST developer API. **How it works** The PMS offers a unified reservation calendar with multi-channel sync, property listing configuration with rate plans across channels, and real-time inventory to prevent double bookings. Channel connectivity covers Airbnb, Booking.com, Vrbo, Expedia, HomeToGo, and Holidu with OTA listing mapping. A direct booking website module with CMS supports SEO and AI-assisted listing content optimisation. Smily Payments handles multi-currency collection across European markets. The owner portal provides real-time financial visibility, automated earnings reports, and a Revenue Distribution feature producing transparent payout calculations with normalised line items for OTA fees, commissions, and processing costs. A unified inbox plus Smily AI handles multilingual inquiries. The developer API uses OAuth with read/write scopes and webhooks for booking and inventory events. **Who it's for** Professional vacation rental management companies in France and wider Europe needing API depth and owner-facing financial transparency.
Listed on STR Market Map, the short-term-rental software marketplace.