I use a cutter to remove the core & seeds, then freeze them. The cutter makes wedge shaped pieces and has a round section in the middle for the core, which was originally obtained for eating apple slices dipped in caramel for snacks but works great for this. I bought a press, which I use for cranberries as well, but still a lot of work. You might find someone in your area, local grower, that has a press for apple juice you could talk into doing it for you.