You don't need to pay for Sync if you can't afford it either, though. A free version exists, the only noteworthy difference is that it shows ads. To your point, there are technically a few gated features behind the Ultra subscription, but these are niche inclusions that 99% of people probably wouldn't use even if they were included for free. I think of them more as an added bonus for supporting the dev.
You don't need to pay for Sync if you can't afford it either, though. A free version exists, the only noteworthy difference is that it shows ads. To your point, there are technically a few gated features behind the Ultra subscription, but these are niche inclusions that 99% of people probably wouldn't use even if they were included for free. I think of them more as an added bonus for supporting the dev.