i heard it was gonna be discontinued (im not sure, cause i can still use it perfectly), but stealth does the same thing and works+looks better than geddit from my experience.
edit: nevermind, i just checked and have got no clue why i thought it was being discontinued.
Reddit started charging per API access, making all the third-party apps infeasible. I know RedReader managed to get an exemption for being particularly useful with screen readers for the vision-impaired. Reddit's API changes still apply; NSFW subs now can't be accessed without logging in, although NSFW posts in SFW subs show fine without log-in.