Yes, both Segment and 1Flow offer a Free Trial.
Segment is designed for Large Enterprises, Medium Business and Small Business.
1Flow is designed for Large Enterprises, Small Business and Medium Business.
The starting price of Segment begins at $120/Month, while pricing details for 1Flow are unavailable.
Some top alternatives to Segment includes CustomerLabs CDP, BlueConic, Captain Metrics, Zylotech, Lexer, Acquia Marketing Cloud, BSI CDP, Gravito CDP and euromessage CDP.
Some top alternatives to 1Flow includes and undefined.