Email Marketing Software Reviews

Mailchimp is trusted by millions of small businesses and is especially familiar to newcomers. In recent years it has restructured into an all-in-one marketing platform, which means the core email product now sits alongside tools for landing pages, customer journeys and basic CRM features. It's a strong all-rounder, though pricing and feature-gating can frustrate users who only want simple email.

Brevo grew fast among UK and European businesses because it charges by volume of emails sent rather than the size of your contact list — a big deal for growing lists. It combines email marketing, transactional email (via its SMTP API), SMS, chat and automation in one platform.

MailerLite has built a reputation as a no-frills but genuinely powerful platform. It offers a clean drag-and-drop builder, visual automations, landing pages and a generous free tier. For many UK freelancers, creators and small businesses, it represents the best combination of cost and capability.

Klaviyo is a data-driven marketing platform designed around the customer journey for online stores. It excels at collecting behavioural data, building rich segments, and automating flows like abandoned carts, browse abandonment, post-purchase and win-back — all measured against revenue. For serious ecommerce, it's the platform most often recommended.

ActiveCampaign is respected for its depth: a robust visual automation builder, CRM with pipelines, lead scoring, predictive sending, and sophisticated segmentation. It's more complex than Mailchimp or MailerLite, but far more powerful for businesses that outgrow basics — a common next step for UK agencies, B2B teams and online stores.