Sync Ultra OTP is available for 109,99 €

https://feddit.de/post/2103625

Sync Ultra OTP is available for 109,99 € - Feddit

Just run your phone through a free private DNS server and never see an ad again. I use dns.adguard.com.

None of my free apps show any apps on my phone.

I mean sure, but that doesn’t support the hard work the developer or into this… So…
Just donate whatever amount you want directly to them then.
Those donation buttons, rarely ever get used. Because everyone would rather just think that everyone else donated so it’s fine if they don’t. And sure, some do donate (I’ve donated before) but that’s the actions of the very few.
I do this. But I would still like to pay the dev. Just not those prices,
There’s also the ad removal option for 20$ one time. If you don’t need the other features of ultra.
I do that too on my Samsung phone. Do you know a way to do it on iPhone?

Check out their instructions. You’ve got a couple options:

adguard-dns.io/en/public-dns.html

AdGuard DNS — ad-blocking DNS server

Create your ad-blocking DNS server that will protect your personal data, prevent tracking and allow you to control access to specific content on the Internet.

Connect to public AdGuard DNS server