Some things do charge different amounts though. YouTube Premium for example is more expensive if you subscribe in iOS but maybe that’s just because it’s Google.
They also could have just not let anyone subscribe through the iOS app. Lots of things do that.
130ms is perceivable but still quite small, and you’d only hit it once per domain (per TTL). If you care enough to intentionally use it then I wouldn’t worry about it. You’ll rarely notice the difference.
There are a few other services with similar ethos that you may want to check out as alternatives. Quad9 is the one I remember off the top of my head.