Rishikesh

A desktop app for Substack writers that takes the data Substack already has on you and turns it into a full analytics dashboard. Engagement segments that show who's active, fading, or gone. Cohort retention by join month. Churn risk scores. Superfan detection. Best day and hour to post. Growth forecasting. Posts worth resending. Everything runs locally on your Mac or PC. No cloud, no account, your data never leaves your machine. Built by a Substack writer who uses it on his own newsletter!