It should. Square states Android 4.0+... but I have no personal experience with the Galaxy Tab Pro 8.4...
"iPhone running iOS 6.0 or later
iPad and iPad mini running iOS 6.0 or later
4th-generation iPod touch and later
Smartphones running Android 4.0 or later
Tablets running Android 4.0 or later (for expanded layout view)"
9 years, 4 months ago
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Posted by:
OldGeek
from
Hilton Head Island, SC