Not sure if you have tried voyager yet, but it has been great for me. It's a PWA, so you can install it to your phone homescreen from the browser. All of the kinks seem to be pretty ironed out by now.
Completely ad free and monetarily free, as well.
To be fair, though, I never used sync. I used RIF for reddit, and I haven't missed it since I found Voyager.
Not sure if you have tried voyager yet, but it has been great for me. It's a PWA, so you can install it to your phone homescreen from the browser. All of the kinks seem to be pretty ironed out by now.
Completely ad free and monetarily free, as well.
To be fair, though, I never used sync. I used RIF for reddit, and I haven't missed it since I found Voyager.