Love it!
When I found out about this app, I immediately bought the lifetime full version and Im definitely not sorry! It’s amazing and I wanna spend all day just discovering etymologies of words! There is a lot more material in English of course (many words in my native language - Czech - just don’t have the full etymology there), but many of those Czech words have similar roots as English ones so I just search for the English ones and get full answers. I appreciate searching for words in different languages because it’s great for discovering connections.