Iconly Pro is a solid option. The icons are well-made. But the support system needs to be improved. I have faced problems 4-5 times, but the support link in the app doesn't work, no contact or email on the website. Even no reply from Twitter.
I bought this as a Lifetime plan, but not getting support is not good. Other than that, it's a solid investment.
Hopefully the animated icons will be available soon.
Bought the library a week ago and been using it. I can tell although it doesn't have "All" the icons in the world but it's definitely solve prototyping problem of an indie product designer
You have a great landing and demo set of icons, but on the other side you have terrible signing up and verification process before purchasing full access