Is it possible to keep an Infinity board synced with a Trello board? I have to use both because of different choices made by others and it would be great, if I can sync one of my boards across two platforms.
Hi @vkalogera welcome to the community 
Unfortunately, natively that is not possible, even though we have an import integration from Trello that does not make them sync in any way, shape or form 
Now, what you can do is utilize our zapier integration, with it - you can make them sync, whenever there’s an item updated inside infinity, or a new item created, folder created or similar you can create new card, update an existing card, create a new board and so much more inside Trello.
You can do it both ways, if a card was created inside Trello, you can create a new item inside infinity, if a card was updated, you can update an item inside infinity and similar. It that sense, you can achieve at least some degree of syncing them together.
I would suggest visiting this link to see what is possible, actions and Triggers will help you understand what you can do.
Hope that helps.