I don’t understand the hate for charging for a product. I pay for a Mastodon client. If a Lemmy client that I really liked cost money and I felt the price was reasonable, I’d support that developer, too.

Nothing wrong at all for charging for the main version to support development as long as it’s not gouging. I don’t think this is gouging in the slightest.

I don’t think price gouging is even possible unless you control most or all of whatever resource. Sync is one of many apps to access Lemmy, and it isn’t forcing anyone to pay or even use it.