Here is a summary of the text in 1 paragraph: Cold email software speeds up and optimizes outreach, automating workflows, deliverability, analytics, and integrations. To help users choose the best app, the article evaluates and tests dozens of cold email tools, including Hunter for freelancers and beginners, Klenty for customizing sequences with AI, Instantly for scalability, Woodpecker for generating email bodies with AI, Apollo for B2B database management, GMass for managing campaigns via Chrome extension, Mailshake for multichannel outreach, and others. The article highlights the standout features of each app, their pricing, and how they integrate with other tools like CRMs and Zapier. It also provides tips on lead enrichment, chatbots, and CRM integration to help users optimize their cold email workflows.