10 Best Newsletter Analytics Tools for Founders [2026 Updated]

1. Substack

• Type: Free
• URL: https://substack.com
• Overview: Substack is a creator-first newsletter platform that provides built-in subscriber and revenue analytics to track paid vs. free subscribers, open rates, and earnings per post. It focuses on subscription growth metrics and simple audience insights to help independent writers measure newsletter performance.

2. Buttondown

• Type: Paid
• URL: https://buttondown.email
• Overview: Buttondown is a lightweight newsletter platform offering detailed analytics including opens, clicks, subscriber growth, and segmentation, designed for indie publishers who want straightforward performance metrics. It emphasizes privacy-friendly tracking and simple, actionable reporting for each send.

3. Mailchimp

• Type: Paid
• URL: https://mailchimp.com
• Overview: Mailchimp is an all-in-one email marketing solution that provides comprehensive campaign analytics (open rates, click maps, delivery, and conversion tracking) plus multi-channel reporting across audiences. It also supports custom reports and exports for deeper analysis and cross-channel attribution.

4. ConvertKit

• Type: Paid
• URL: https://convertkit.com
• Overview: ConvertKit is a newsletter-focused platform tailored for creators that includes subscriber, sending, and revenue analytics with funnel performance and segment-level engagement metrics. Its reporting highlights subscriber growth, automation conversion, and link-level click data for optimizing newsletter monetization.

5. MailerLite

• Type: Free
• URL: https://www.mailerlite.com
• Overview: MailerLite offers email campaign analytics such as opens, clicks, deliverability, and campaign comparison reports, plus subscriber activity timelines and A/B testing insights for newsletters. It provides an approachable analytics interface for small to mid-size publishers to monitor engagement and list health.

6. Klaviyo

• Type: Paid
• URL: https://www.klaviyo.com
• Overview: Klaviyo is a data-driven marketing platform that delivers advanced email and newsletter analytics, including revenue attribution, cohort analysis, and multi-touch attribution for campaigns. It integrates deeply with ecommerce platforms to connect newsletter engagement to sales performance and lifetime value.

7. Campaign Monitor

• Type: Paid
• URL: https://www.campaignmonitor.com
• Overview: Campaign Monitor provides robust newsletter reporting with real-time opens, clicks, geographic insights, and comparative campaign analytics to identify top-performing content and segments. It also includes click maps and deliverability diagnostics to refine sending strategy.

8. SendGrid (Twilio SendGrid)

• Type: Free
• URL: https://sendgrid.com
• Overview: SendGrid (Twilio SendGrid) is a transactional and marketing email platform with dashboards for delivery, opens, clicks, and engagement trends, plus event-level activity logs for newsletter sends. It’s built for high-volume senders who need granular analytics and programmatic access to reporting data.

9. Litmus

• Type: Paid
• URL: https://litmus.com
• Overview: Litmus focuses on email testing and analytics, providing engagement tracking, client render previews, and campaign performance reports that surface open and click behavior across devices and clients. Its analytics help teams optimize design, subject lines, and deliverability before and after sending newsletters.

10. Postmark

• Type: Paid
• URL: https://postmarkapp.com
• Overview: Postmark is an email delivery service with clear analytics for delivery, opens, and clicks along with detailed message streams and webhook/event logs to analyze newsletter performance and troubleshoot deliverability issues. It emphasizes fast, reliable delivery and developer-friendly reporting for operational email monitoring.