Side-by-side comparison of AI visibility scores, market position, and capabilities
Substack is the newsletter and publishing platform that reached $1.1B valuation in July 2025 with 5M paid subscribers and $450M+ in annual writer gross revenue, becoming a major media distribution platform.
Substack is a publishing platform that enables writers, journalists, and creators to publish newsletters and build subscriber communities with integrated payment infrastructure. Founded in 2017 by Chris Best, Hamish McKenzie, and Jairaj Sethi, Substack popularized the creator-owned newsletter model by making it trivially easy to start a paid newsletter, handling payments, delivery, and subscriber management so writers could focus entirely on their content.
Real-time content analytics for digital publishers; engaged time measurement and editorial decision support used by NYT, Washington Post, and 50K+ media sites.
Chartbeat is a real-time content analytics platform used by digital publishers, news organizations, and media companies to understand how audiences engage with content — tracking page views, time on page, scroll depth, traffic sources, and engaged time to help editorial teams make data-driven decisions about content strategy. Founded in 2009 in New York City and used by over 50,000 media sites including The New York Times, The Washington Post, and international publishers, Chartbeat focuses exclusively on the media and publishing vertical rather than general web analytics.
Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.