Spyglass
Excellent and useful application.
Although I understand a minor tolerance relative to accuracy or deviations should be factored in, this possibly a result of apparent geographic location of the user and "available accuracy" of the signal being received.. perhaps issue being country specific or provider specific re security sensitivities? or in fact the iPads sensitivity and susceptibilty to magnetic fielding effects.
In any case it should be noted that instances as such were generally experienced in dense and urban areas and at times with a relatively weak signal.
It should also be noted that it has proven useful in a number of situations in which I did in fact depend on the app.
If it hasnt already been considered by the developers, I would certainly like to see a choice of scales (distance: m, km, miles etc) available in the settings for superposition on the maps... Possibly in a future update?
IMHO - and for what its worth - it is a great tool to have handy for reference purposes. I have already recommended the product to a number of associates.
GunRNR about
Spyglass, v3.3.6