Goat Eyes
Striker
The thing with this is that it has indexed every single indoor / outdoor area of the globe.Similar to a 6 figure grid ref. when using an OS map that.
Some counties in Asia just use the telephone number directly into the day nav.
For example, at a festival you could find a mates tent to the exact 3m x 3m spot in the camp.
In the SOL you can navigate to a seat.
In a club you can navigate to find a mate.
Unfortunately it doesn’t work vertically.