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... 

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