Comment by bayindirh

The iOS version asks you whether you want to store your vault in iCloud or not only.

However, if you don't store your vault in iCloud, it creates an Obsidian folder inside the area which can be accessed by Files app (as I just checked), which means, any application having files integration can access and sync that folder.

Even if you store your vault in iCloud, it's still accessible by any app which offer files integration [0].

[0]: https://news.ycombinator.com/item?id=43972056