Newsletrix

Newsletrix is an AI-powered newsletter analytics dashboard designed to help creators and marketing teams understand competitors and improve their email campaigns. Its platform analyzes competitor newsletters and turns observed patterns into practical recommendations, helping users make more informed decisions about content, timing, and promotions. A free plan is available, with no credit card required to get started.

Core capabilities include competitor tracking, email service provider detection, subject-line scoring, and analysis of newsletter content, calls to action, links, and send schedules. Users can explore estimated engagement benchmarks, identify effective send-time windows, compare promotional and seasonal campaign patterns, and review readability, keywords, and email design. Newsletrix also generates SWOT analyses based on actual newsletter content and prioritizes opportunities for improvement.

The service includes tools such as an ESP checker, subject-line tester, preheader optimizer, hook tester, CTA click predictor, footer compliance checker, personalization-token scanner, and alt-text auditor. It supports newsletters from platforms including Substack, Beehiiv, Mailchimp, ConvertKit, Klaviyo, SendGrid, and HubSpot.