Streak's free version offers basic CRM functionality with up to 500 contacts, 50 mail merges per day, and limited email tracking, which G2 reviewers find useful for solo users and early-stage evaluation. Streak's paid plans unlock significantly more capability: the Pro plan at $49.00/month adds unlimited records, shared pipelines, and 1,500 daily mail merges. The Pro+ plan at $69.00/month introduces automations, advanced reports, archived users, and AI Co-Pilot. The Enterprise plan at $129.00/month adds custom permissions, data validation, and priority support. G2 reviewers frequently cite the free tier's email and contact caps as the primary reason they upgrade to Streak's paid plans.