A secure, manifest-based synchronization engine connecting Android's local storage with Google Drive. Built for privacy, speed, and total ownership.
Sinkhole represents a one-way path that everything eventually falls into, in this case, your data securely landing in your private cloud storage. It bridges the gap between your Android device and Google Drive, focusing on a "local-first" approach.
Learn how to use Sinkhole as a free, secure alternative to Obsidian Sync for your Android vaults.
Explore the Storage Access Framework, two-way sync, and manifest tracking internals.
Follow our step-by-step guide to installing and setting up the app on your device.
Instructions for generating your own Google Drive and API credentials for your private build.