Re:I Waited 19 Months for the Magic Coin Card and It Was a B...
by claytonjy on Monday July 13, 2015 @01:52PM
(#9879748)
Here's a good comparison of the 4 big ones: http://forum.xda-developers.com/general/off-topic/coin-vs-pl...
They mention that Coin doesn't support "Track1 data" which prevents it from working at lots of big retailers
Edit: added names of other competing cards