For years Aweber and GetResponse have been the top two email autoresponders recommended to members on this forum.
This is the first Free Email Autoresponder offered by Aweber. In the past, Aweber offered a free trial. That is no longer available.
To my knowledge GetResponse does not offer a free email autoresponder at this date. At present, GetResponse still offers a free trial.
Hopefully that will change now that their competitor is offering a email autoresponder for free.
Check Aweber out at Aweber (not affiliated).