CPU Monitor serves as a comprehensive system diagnostic tool for Android devices, offering real-time monitoring of hardware performance metrics. Developed by Mudassar Shahbir, this application fills a niche for users requiring detailed insights into their device's operational status beyond standard system settings. The application's core functionality centers around multi-core CPU monitoring, displaying usage percentages and frequency fluctuations across all processor cores simultaneously. The battery monitoring section provides temperature readings—though noted as approximate—alongside storage and RAM usage statistics. A distinctive feature involves the app's proactive cooling recommendations, which suggest practical measures to reduce device temperature during intensive usage scenarios. Interface design follows a utilitarian approach with clear numerical readouts and color-coded indicators for quick status assessment. The dashboard presents all critical metrics on a single scrollable screen, with historical data presented through simple graph visualizations. Real-world testing demonstrates reliable updating of metrics during gaming sessions, video streaming, and multitasking operations. With no user reviews available at publication, assessment relies on technical evaluation. The application maintains a 4.46/5 rating on the Play Store, suggesting generally positive reception among its user base for delivering promised functionality without significant performance overhead. The application excels at providing granular system data typically inaccessible to average users, though temperature readings carry approximation disclaimers. Ideal for troubleshooting performance issues or monitoring resource-intensive applications, it serves tech enthusiasts and users experiencing overheating concerns more effectively than casual consumers seeking basic device information.