SubX is a subscription tracker app for Android that features an extensive database of subscriptions, allowing users to easily add services tailored to their region. It notifies users of price increases and provides historical pricing data, helping users stay informed about their financial commitments. The app displays total subscription expenses prominently on the home page, alongside income figures if provided. However, SubX requires a one-time payment to unlock additional features and has a free version limit of four entries. The user interface can feel cluttered, though users can hide unnecessary elements. Alternatives to SubX include Tilla, which has a more user-friendly interface but fewer advanced features, Recurring Expense Tracker, which offers a clean design and biometric security, and Subscriptions, which has shifted to a subscription model.