The Infinity app for Reddit is a multi reddit account Android client. You can sign to multiple reddit accounts and you can also use the apps anonymous account feature. The anonymous account is browsing reddit without being in any of your accounts and essentially just like browsing reddit in a inconigo tab and not being logged in.
I’m logged into Lemmy.ml, have the beehaw.org instance added, & viewing All@beehaw.org… I can’t accidently up or down vote, or comment, as this message is displayed at the bittom of the screen… So yes I am browsing this instance anonymously…👍🏻