Conceptually similar, but the problems are focused around bioinformatics. Most lot of the problems contain some background context that teaches you a little biology/statistics as well.
For me it's been other way round. I mean I was actually very much interested in genetics so I encountered Rosalind. Going through Rosalind, I realized I need to learn Python and I didn't know any programming till then. So my first lessons of Python were from Rosalind! I started loving Python and programming. Then I encountered Project Euler...
Conceptually similar, but the problems are focused around bioinformatics. Most lot of the problems contain some background context that teaches you a little biology/statistics as well.