CuteSync is a small version of Milky's 4chan NameSync & Opros' FrenSync for /b/ and /trash/, designed for the 4chan mobile layout.
It does not require 4chan X
Will update names on boards* and in threads and on every auto update.
Set your name in the fields at the page footer.
I am aware it seems to be broken on board index pages and will always sync the OP of the top thread if there is a synced thread on the page.
I cannot be bothered fixing this right now, but it still works fine inside threads!
I am lazy and gay, but will get round to it eventually.
iOS installation instructions here
Android installation instructions here
(You can also use these instructions to install iFagFinder, a light, read-only version of the Tripfag Finder, to make finding threads on mobile easier.)