Question on 3rd party application and ToS.

[Avatre]

All third party programs that interact with FFXIV are against the ToS. No matter how harmless they might seem.

Now in practice SE has kind of fight club rules going on. You won't get banned for using, for example, a parser if you never mention it in game/use it for self improvement. But even then, it's technically not allowed.

If you're curious about their detailed stance... https://www.youtube.com/watch?v=3-WXYg-S05U&t=370

To sort of elaborate on the parser, it's more of a "as long as you aren't using it to exclude people from parties, have at it" type of situation...so as long as no discrimination is going on due to the use of the parser, they turn a blind eye to it. That, and as long as the people that are over-zealous with the wanting of banning parsers(usually due to bad personal experience) don't catch wind you use one, you usually are safe to use it to improve yourself/help improve others(in friendly, non-limiting, ways)