Yes, both AWeber and Proof offer a Free Trial.
AWeber is designed for Large Enterprises, Medium Business and Small Business.
Proof is designed for Medium Business and Small Business.
The starting price of Proof begins at $26/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 Proof includes and undefined.