What's a solid iOS app for keeping in touch with friends overseas, especially one that doesn't make video calls look like they're coming from a potato?

Okay, so I've been using LINE to chat with some buddies scattered across the globe, and honestly, the video call quality is way better than I expected. I mean, it's not like I'm running a full statistical analysis on call clarity, but subjectively, it's a win. Plus, they've got this whole sticker ecosystem – think of it as emoji 2.0. It's kinda like having a visual API for emotions. I know, I know, sounds nerdy, but it's surprisingly effective for quick communication. And hey, the fact that my friends haven't complained about my video looking like it was filmed with a potato? Data nerd approved. It's not gonna replace face-to-face, but for staying connected, it's a pretty clean dataset, if you catch my drift.