“Reading is not enough, you must apply”

“Reading is not enough, you must apply”
But what if you forget what you’ve read.
Hi! I am very fascinated by the idea of Flashcards. They are a great piece of tool & they work great.
The problem is - the tools. There aren’t enough good tools with modern look/features. I’ve been using Anki for last 4 years it is nice, but not great. The look is same as it was 10 years ago.