# StackStats

> Advanced analytics for Substack writers. A local desktop app (Mac & Windows) that shows you what Substack's dashboard never will — engagement segments, cohort retention, churn risk, superfan detection, content-to-growth correlation, and best time to post. Runs 100% locally. One-time purchase, no subscription.

StackStats is built by Rishikesh Sharan, a Substack writer who publishes "10+1 Things" (a weekly curated links newsletter). It reads your Substack CSV exports locally and computes deep analytics that Substack does not expose in their native dashboard. No cloud processing, no accounts, no recurring fees.

Current version: v1.5.2 (released March 25, 2026).

## Product

- [Home](https://stackstats.app): Product overview, features, pricing
- [Live Demo](https://demo.stackstats.app): Interactive demo loaded with real newsletter data — try every tab before buying
- [Changelog](https://stackstats.app/changelog): Full version history and release notes

## Documentation

- [Installation & Getting Started](https://stackstats.app/instructions): Step-by-step install guide for Mac and Windows, data import instructions (Auto-Sync and Manual), AI setup, troubleshooting
- [How Licensing Works](https://stackstats.app/license): Perpetual license model, device limits, renewal policy

## Purchase

- [1-Year License — $39](https://buy.stackstats.app/l/stackstats-1year): 1 device, 1 year of updates, app yours forever after
- [Lifetime License — $79](https://buy.stackstats.app/l/stackstats-lifetime): Up to 3 devices, every future update forever

## Support & Legal

- [FAQ](https://stackstats.app/#faq): Answers to common questions about data privacy, AI, exports, and licensing
- [Privacy Policy](https://stackstats.app/privacy): Full privacy policy — only license key and device fingerprint are ever transmitted
- [Terms of Service](https://stackstats.app/terms): Terms of use
- [Manage License](https://stackstats.app/manage-license): View and deactivate registered devices
- [Contact](mailto:hello@stackstats.app): hello@stackstats.app