117 dollars for lifetime Ultra is wrong. Just saying. That's 15 Big Macs to remove ads and letting me cloud storage my settings.
How can that be a good purchase in anyone's book?
Edit: Sorry didn't anwer your question. I would set lifetime of Ultra at around 35-40 usd. And ad removal at 15 usd. I would also add a donate button for the people that wants to donate, since a lot of the Lifetime Ultra purchasers claim they bought to support the dev and nothing else. Let them do that how much they want.
Other free apps are closing in. And the free version of Sync is still the best app. I love Sync. But I won't paying harmful prices.