Sync has a lifetime ad free option. That removes the Google tracking as well, since it's tied to ads. Subscription it for extra features you probably dont need. Based on comments about reddit sync, it also doesn't track usage statistics. But that is mostly a guess from my side.
The price is a steep 20 USD, but the app is new and the Dev is well known. You also know what you are getting if you have used Sync before.
Tachiyomi for manga reading