SubSentry

SubSentry is a mobile + web app that detects, tracks, and helps cancel recurring subscriptions across banks and card accounts. It connects via open-banking aggregators, identifies recurring merchants, flags price hikes and trial-to-paid conversions, and builds a single “renewal calendar” with alerts before charges hit. Users can set rules like “block any renewal over $20” or “require approval for annual plans,” then route actions through guided cancellation flows (email templates, in-app call scripts, merchant portal deep-links). It also produces a monthly “leak report” showing duplicates (same service billed twice), unused subscriptions (no recent usage signals via optional email/receipt parsing), and negotiable bills. This is a combination traditional + AI app: AI improves merchant matching, categorization, and cancellation guidance, but the core value works without magic. Monetization is straightforward: freemium tracking, paid plan for multi-account, advanced rules, and concierge cancellation.