Open Dropbox directory as vault on iOS

[ariehen]

It’s not possible to use Obsidian with a vault in Dropbox directly.

Meta Post - Syncing between Devices

The official documentation for syncing Obsidian across devices is a great place to start. If you have ideas to improve the Obsidian documentation, pull requests are welcome. You can contribute to the process of documenting Obsidian on GitHub. First things first: Obsidian Sync vs. Third Party Sync. The advantages of Obsidian Sync is that it’s officially supported, “just works,” has nice versioning that is built into Obsidian, and is blazing fast and optimized for your vault. The main tradeoff is…

and (courtesy of @Synchronicity):

These are the five methods currently believed to work for syncing between devices if you’ll be including an iPhone and/or iPad:

• iCloud (NOTE: iCloud on Windows is known to cause file duplication issues as well as data corruption and loss, and the Obsidian devs and community strongly recommend that you avoid this combination.)

• Official Obsidian Sync

• Self-hosted LiveSync plugin

• Remotely Save plugin and various cloud services, including Amazon S3 or S3-compatible, Dropbox, OneDrive for personal, and Webdav

• Git with the Working Copy iOS app