THINKNUM - Jan 4 - As people learn more about the sketchy ways that Facebook has handled personal data - especially when it comes to third-part apps - it's possible that they've moved away from using Facebook login. At this time last year and the year before it, Tinder saw a noticeable lift in December. So is it just Tinder, or the dating app world in general? Bumble doesn't have a noticeable drop in usage. Instead, there is a healthy jump in rank in November as we enter the holidays followed by a consistent user rank since.