A wild auto-sync method appears. It is pretty seamless, but unfortunately, it requires root access. Prerequisites Root FFRK installed and logged in How It Works Creates a local copy of FFRK webview cookie database (this step is what requires root) Performs a web request using the auth cookie found in the database Parses the resulting HTML/JSON to retrieve the stamina values Notes The game does not need to remain running once logged in. Logging in on a different device may cause sync to stop working until you log in again. Sync may stop working after an extended period of not being logged in.