Last i checked the payment i received from bigstock said shutter c.v.
So must be merging very soon

Eyeem pays well.. Had 15 upto 85 dollars per sale. And payment is asap if you choose to cash out early. Last time i checked.. They still dont process iptc info.. So you would have to manually put in everything.
I dont think it is exclusive unless you decide to approve the photos for getty sales. Eyeem and alamy deal are non exclusive.  I usually just post up my phone shots there... 

republic of korea
android 4.3
seems to work now with the recent update to the app.

been using this app for couple weeks... it suddenly stopped updating everything except istock for couple almost a week now.