Yes, both AWeber and VYPER offer a Free Trial.
AWeber is designed for Large Enterprises, Medium Business and Small Business.
VYPER is designed for Medium Business and Small Business.
The starting price of VYPER begins at $75/Month when Billed Yearly, while pricing details for AWeber are unavailable.
Some top alternatives to AWeber includes Campaigner, Moosend and SMTP.
Some top alternatives to VYPER includes Rafflecopter, Make My Contest, Atipso, EasyPromos, Votigo, OpenWater Awards, Contest Rebel, SweepWidget, Queue, ShortStack and Referaly Lite.