The discussion below explains the reason I don't use this type of "Everything Bucket" apps. Users are forced to spend so much time to migrate from one solution to another every time some developers decide that it isn't worth developing and maintaining their apps. That isn't necessarily wrong, except that this type of apps often keeps your data in a roach motel. Once it's in there, it's tough to get them out. And don't even get me started on how they have Import/Export feature under the File menu. There is no guarantee they will always work. Journler (now defunct) had them, but it stopped working at some point, and I had to figure out a weird and tedious workaround. Evernote's Export feature choked on me many times when I tried to export 2,000+ entries in it. The usual "open a support ticket" routine ensues, and you are bound to waste the next couple of weeks trying to figure out why you can't get any response from your app developer.
I freed myself of all of that by establishing my workflow outside these apps: Markdown text files and folders. I just use whatever the best tool available at the moment to edit my data in open format. I don't need to spend time tinkering and worrying about what the future might hold for each app. They all come and go, so you are better off keeping all your data in open format as much as possible.
You might think that the file and folder method is clumsy, but I found it just as effective as using an Everything Bucket app. I can keep tags inside a text file, and Spotlight can pick them up. A thoughtful file name with some tags at the end of each file name also does the trick. Elegant? Nope. But it works everywhere where the OS has a search function, and my tags are not lost by moving to another computer. And it's super-reliable and predictable. That's more important than some non-essential conveniences Everything Bucket apps might provide.