I can read LN's on my phone with the Baka-Tsuki app. VNs are quite difficult to get on a phone even with VNDS, as it doesn't have many ports. Also, it feels less awkward reading a wall of text than playing a VN in public.
I enjoy both mediums, as I can read content a lot faster through LNs, but VNs are a lot more immersive with sprites, sound, and BGM.