It's so funny. I have bounced between Boost and Sync for years. I really love them both. I think I tend to gravitate to boost for more graphical or visual subs, and I like Sync for commenting or reading more text focused content. I have paid for pro lifetime on both. I miss them, and am excited that Sync is trying to make the jump.
Has the Boost dev(Ruben?) Officially said the app is shutting down? Ppl keep saying it, but I haven't seen an official post or announcement. Reddit keeps saying "we are still working with some devs"...
It lived a long, happy, and fulfilling life before I brought it back behind the barn :)
I had an issue with the link going to the wrong place. Have to repost today a different way.