@matigo Well when Dropbox has conflicts, it prompts you, or makes 2 files. Either way, it does its best to avoid any data loss and plays it safe.
Really, I want to keep this simple and cheap, which is why I want to stick with Dropbox if it's at all possible (even if it means having to remember to close the file on all other devices every time).
The structure of this DB is so simple that it could be done in Excel in as little as 2 sheets — data entry would just be a lot more painful.
My priorities are to get out of Filemaker's closed system and to streamline data entry. To put it into perspective, on an average week I probably create 5 records in the entire DB, but after a weekend of tasting, I might spend 2–3 hours transcribing my handwritten notes from the provided catalogue. The whole deal with at least data entry, if not querying and reports, working on iOS is so that I can edit the DB directly when on vacation, as opposed to my current system of entering notes into text files and then transferring them into the DB once home.