Yes, both UpstreamDB and YesData offer a Free Trial.
UpstreamDB is designed for Individuals, Large Enterprises, Medium Business and Small Business.
YesData is designed for Large Enterprises, Medium Business and Small Business.
Pricing for UpstreamDB Starts at $149.99/Month whereas for YesData Starts at $49.95/User/Month.
Some top alternatives to UpstreamDB includes Qualified, Elevated Signals, ESdat, Workvivo, Omnimetic, DataSpark, Eziil, Datos Intelligence, YesData, NaaS, IFTTT and Data Suisse.
Some top alternatives to YesData includes DataForLeads, Leadflare, Seamless.AI, SalesIntelligent, B2B Salesfuel, Salesinfo, Qualified, Workvivo, Social Lead and IFTTT.