Audience
Substack writers, newsletter creators and independent publishers
About StackStats
StackStats is a desktop analytics application for Substack writers and independent publishers. It imports or syncs newsletter data and presents subscriber growth, engagement, churn-risk indicators, audience segments, acquisition sources, post performance, and growth forecasts. Writers can review reader engagement, identify highly active or at-risk subscribers, compare how posts contribute to growth, and explore when readers tend to open email. Analytics are calculated on the user's computer, and the app supports Mac and Windows. Optional AI tools provide summaries, strategy suggestions, action plans, and data chat through a local Ollama model or supported third-party AI providers using the user's own API key. StackStats is sold with a one-time license; the app continues to work after the included update period ends.