Sync for reddit was a great 3rd party app for browsing reddit. Since 3rd party apps were ousted from reddit the dev repurposed his app for Lemmy. I’ve been using it today and so far it is fantastic. There are some ads, but at the moment it’s the best Lemmy app on the market as far as UI goes imho.
I originally started paying for prime for the free shipping. Prime video is a perk as far as I’m concerned. I haven’t re-evaluated it in a long time though to see if it’s worth it. I do order a ton of stuff on amazon since I live 160km from the nearest city.