If your reliance is on spaced repetition - in the current state - do not switch. An SRS has not been implemented yet, but it is high on the priority list.

Once it has been added, I’d encourage you to look around and see if Scholarsome can fit your use case. To be upfront - this is still very in-dev. Anki is much more feature complete, and will be for some time, but I’m a believer in shipping fast and early to get feedback from users.

I don’t have any plans to monetize my hosted option. At most, I may add a donate button in the future. Releases are all containerized, so it should be easy to host yourself on a system under your control if you trust that more than using a third party.

Anki is supported via the paid iOS app. It used to accept donations but the payment processors kept causing problems.

iOS app is $25 which is wild though