Yes, both KeywordSearch and Zag.ai offer a Free Trial.
KeywordSearch is designed for Large Enterprises, Medium Business and Small Business.
Zag.ai is designed for Large Enterprises, Medium Business and Small Business.
Pricing for KeywordSearch Starts at $97/Month whereas for Zag.ai Starts at $26/Month when Billed Yearly.
Some top alternatives to KeywordSearch includes Videoplan, MonkeyFlux, CreatorCheck, VidTechy, TubeRanker, Tubics, GrowthChannel and Zag.ai.
Some top alternatives to Zag.ai includes buzzbomb.com, GetSocial, ContextMinds, TeslaWrite, AI Suggests, Qualified, Workvivo, Create Target Audience and IFTTT.