OS Calendar 4.0 is only be worked with OS Property 2.6.2 or higher
★ Online Booking: Book Online: rooms, villas, apartments etc of properties. Detailed availability calendar with booked and free dates information. Set prices based on dates, price automatically calculated based on dates and prices and number of rooms.
★ Flexible Pricing: Advanced pricing manager assists you with the price settings for any days, months, weekends, specials offers etc on any room of properties. With a few clicks, set weekend pricing with minimum stay. Prices are presented within the tables describing cost and duration of stay.
★ Custom Fields: We have included some static fields to help you start your project quicker. These fields are commonly used on property rental / holiday websites and can be turned off if needed. Fields are based on categories so you are free to customize them. If you need more fields you can create any custom field: text, dropdown, text box, check-box etc.
★ Multilingual: OS Calendar fully supports multilingual content. All elements like rooms or custom fields can be translated into any language. For non UTF-8 characters we are using URL aliases.
★ Flexible Payment plugins: OS Calendar supports multiple payment plugins. In default installation, you will have Payment and Offline payment gateways. But you can install or develop new payment plugins as you can.
And much more...
As for the support - it's quick and helpful as always. Every my question was individually processed and handled.
For this price I couldn't find better solution. Thank you, OS Team.