Renewal Radar is a local-first subscription tracker for saving recurring charges, viewing upcoming renewals, and processing billing cycles quickly. Add a subscription, choose its next billing date, set reminder timing, skip the current cycle, or mark a charge as renewed to advance the next date. Subscription records are stored on device and the reviewed build does not request INTERNET, location, camera, media, contacts, or broad storage permissions. It requests POST_NOTIFICATIONS to show renewal alerts, SCHEDULE_EXACT_ALARM to deliver timely local reminders, and VIBRATE for reminder feedback when supported.