Systeme.io

Systeme.io appeals to solopreneurs and bootstrapped startups because it offers a genuine free plan that never expires, not a limited trial. You get funnels, landing pages, email campaigns, and basic course hosting without paying. The paid tiers add more template variety, automation, and affiliate management, but the free version is surprisingly capable for building your first sales funnel.

It's popular with non-English markets and lean businesses testing new products before investing heavily.