Thank you,
@Erel.
So nothing changed in the last few years. What could have resulted in a great help for any kind of "ubiquitos" technology and related services is still suffering the initial limitations, imho. Anyway, let me summarize the state of the art:
Apple's iBeacons
Discoverable by Android devices with no limitations
Discoverable by iOS devices only when UDID of each beacon is known beforehand. Working with a list of hundreds of beacons means costantly looping on all of their UDIDs in order to detect whether at leat one of them is near the user device
Both Android and iOS could scan beacons while in background, although non necessarily in a reliable and dependable manner.
Google's Eddystone beacons
Discoverable by Android devices with no limitations
Discoverable by iOS devices only when app is in foreground mode
Both Android and iOS could scan beacons while in background, although non necessarily in a reliable and dependable manner.
Based on the above, Eddystone beacons sounds a betetr choice.
ps: on a totally different subject I sent you a private mail; I guess this time it went to the spam folder. No problem, just to make you aware of it.