Precip - Rain Gauge establishes itself as a specialized meteorological tool that fills a notable gap in weather applications by focusing exclusively on measured precipitation rather than forecasts. The Android application leverages radar technology to deliver automated rainfall measurements with claimed extreme precision, eliminating the need for physical rain gauge installations while providing coverage across the United States and Canada. The core functionality centers on three primary features: real-time precipitation monitoring, historical rainfall data visualization through an integrated calendar interface, and calculations showing days since last rainfall. The system automatically tracks rainfall amounts at user-specified locations, with the free version offering 48 hours of historical data while the premium subscription extends this timeline significantly. The application processes radar data to generate specific precipitation measurements rather than estimates, distinguishing it from broader weather applications. User experience demonstrates thoughtful design with an intuitive interface that requires minimal navigation to access critical data. The map-based location selection allows users to pinpoint exact coordinates for precipitation monitoring, while the calendar view provides visual representation of daily rainfall patterns. Real-world usage patterns show particular utility for agricultural planning, construction scheduling, and recreational activities where precise precipitation knowledge impacts decision-making processes. User feedback consistently highlights the application's specialized functionality and interface design. Jacob Rehage (2025-05-29) noted the app 'does one thing and does it extremely well' regarding precipitation measurement, while Steven Witzke (2025-08-07) demonstrated practical application for monitoring remote hunting properties. Multiple reviewers acknowledged considering premium upgrades for extended historical data and additional location tracking, indicating perceived value in the subscription model. The application demonstrates significant strengths in its specialized focus and precision measurements but faces limitations in geographical coverage restricted to North America and the paywall for historical data beyond 48 hours. While the radar-based system provides comprehensive coverage, accuracy may vary in topographically complex regions. Ideal use cases include agricultural management, landscape maintenance, event planning, and any scenario requiring verified precipitation measurements rather than forecasts.