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DropBox changed their free tier to limit it to just three devices allowed to connect, and advised me to move to a pay tier. I killed all but two connections, and removed all items from my DB folders. Now I use DB strictly as a way to move items onto the iPad (Marvin, the ebook reader I use in preference to Apple’s ebook reader, because it’s less annoying, grabs books from DB; I put an EPUB into DB, import it into Marvin, remove it from DB) and not a bloody thing else. No, I’m not paying them a bloody penny. Yes, I’m on to the Marvin devs about putting in support for OneDrive or iCloud.