I've been playing around with some Android heat map apps but what I've found so far has been lacking (e.g. a crap UI that doesn't let you do anything or a rendered map that doesn't do anything too helpful with the data you collect).
Do you have any recommendations?
Mac, Windows, iOS or Android - open to suggestions.
Have the UBNT tool here as well - but the map it creates isn't based on real data - it just guesstimates what the likely coverage is.