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Android? Wtf? Keychain is a Chrome/Firefox/Brave Extension... lol what do you keep going on about wiuth this app store nonesense? LOL 8slaps you* SNAP OUT OF IT MAN

ITS A GODAMN BROWER EXTENSION
https://chrome.google.com/webstore/detail/steem-keychain/lkcjlnjfpbikmcmbachjpdbijejflpcm?hl=en

That works on BRAVE as well by the way all chrome extensions work on brave or the ones i used do at least

Firefox:
https://addons.mozilla.org/en-US/firefox/addon/steem-keychain/

Try loading it on a tablet?
I don't have a desktop, the one i use is owned by a luddite.
He uses edge!
He's one of the 12%.