Syncing seasonal prices and minimum stays across multiple websites

So I’ve done a search through the forum but can’t find anything recent, and most of it is referring to syncing calendars. We are listed on AirBnb, our own website, Booking.com, Homeaway and Trip Advisor. Most of our bookings come through the first three.

I happily have our calendars set to sync through the features in place on the sites, but I find it really frustrating going to each individually to manage price changes and minimum stay requirements for long weekends, school holidays, etc. I’d prefer a free program, but happy to pay for some thing too! I’d like to be able to log in to one space and put in prices for specific dates that override the other sites. In an ideal world I’d also be able to upload photos and have those updates across listings too… I don’t care about using it to contact guests.

Does this exist? What are you using to make managing your listings easier?