Apollo vs Clay vs Instantly vs Lemlist: Stack Audit for B2B SaaS Cold Outreach — When to Use Each, When to Switch, and What It Actually Costs (2026)

Apollo vs Clay vs Instantly vs Lemlist cold outreach automation stack comparison for B2B SaaS teams 2026

Apollo, Clay, Instantly, and Lemlist are not competing products — they own different layers of the same outbound stack. This audit maps which tool does which job, what a 3-person team actually pays, and which combination fits your stage.