StackStats is a desktop analytics app for Substack writers. Connect your Substack in one click and it pulls everything in: KPIs, 30-day growth, a 180-day subscriber forecast, growth sources, churn-risk readers, superfans, readers likely to upgrade to paid, best time to post, and per-post performance. Everything is computed locally on your computer, with no servers and no account. Optional AI insights (30-day action plan, growth strategy, chat about your data) run fully offline via Ollama or with your own API key (Claude, GPT-4, Gemini, Groq, OpenRouter). Built by a Substack writer with ~3,000 subscribers for his own newsletter. Not affiliated with Substack Inc.
Pricing: Paid, one-time. 1-Year license $39; Lifetime $79 (early adopter, normally $129). Free live demo at https://demo.stackstats.app. 14-day refund.
Maker: Rishikesh Sreehari (@rishikeshshari) - a /make_ (slashmake.co) company. Contact: [email protected]
Key features: one-click Substack sync; 180-day growth forecast; churn risk detection; superfans and upgrade-ready readers; best posting time; growth sources; publication deep dive; optional local or bring-your-own-key AI; 100% offline on Mac and Windows. It is built for Substack writers who want to understand their audience without handing their data to another cloud service. There is no subscription and no account to create: buy once, and your numbers stay on your own computer.
