[Coda]

If you're just sitting in one place using an Incense, it doesn't do much -- it spawns a Pokemon from the list of stuff that spawns in your general area once every ~5 minutes. It's weaker than a Lure.

If you're WALKING with one, then it triggers as frequently as once every 100 meters as long as you're not traveling too fast. If you're traveling at a fuzz under 4mph then you hit the sweet spot of once per minute, but the way it measures distance makes it hard to hit that sweet spot. And for reference, 4mph = a 15-minute mile, so that's power-walking but not up to jogging yet.