@developerbayman it's just an update of an app that I have had in the store for years now.
This is an open ecosystem. User choice is welcomed. If it is a different app, inspired on Syncthing or no, then there's definitely no objection.
Even if it were the same app, then I am in no capacity to object anyhow. But in the latter case I would rather appreciate collaboration rather than having two distinct versions of the same app in the store.
But since this is not even the case with your app, by all means follow your intuition.