No :(
Don't think he cares about the ranks here, i would subscribe to ther other site but dolar is way higher than my currency here, too much money sadly and have to pay taxes for conversion too
There are no ranks here.
If you bought the game (called premium) then it unlocks with your itch.io email info and itch button. It is not the same as chunin supporter which has early access and like patreon style updates.
You still need to go to the website or discord to get the latest version though. Itch.io version will never be updated until the public version is 'finalized' and stable/bugfree--ish.