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High-volume cold email campaigns
Newer platform
Typical cost: $79/mo
High-volume cold email campaigns
2 screenshots
Smartlead helps agencies and sales teams scale cold email with unlimited mailboxes, warmup, and AI personalization.

PostHog
FreemiumProduct analytics, session recording, feature flags, and A/B testing.
Best for: Developer-first teams who want full product insights without vendor lock-in

Hotjar
FreemiumUnderstand how users behave on your site.
Best for: Non-technical teams focused on UX optimization and qualitative user feedback

Mailchimp
FreemiumAll-in-one Marketing Platform for small business.
Best for: Small businesses needing an all-in-one marketing platform with proven track record

Loops
FreemiumEmail marketing built for modern startups.
Best for: Developer-focused startups who want modern email infrastructure with API flexibility
Revenue is the total income generated from selling products or services before any expenses are dedu...
Scaling is the process of growing a company rapidly while maintaining or improving unit economics an...
Email marketing uses email to communicate with prospects and customers, including newsletters, promo...
Good gtm option with paid pricing. Solid choice for startups.
Reviewed December 2025 by our editorial team
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