Call Blocker: Caller ID & Block positions itself as a comprehensive solution for Android users battling unwanted calls, leveraging a global database of over two billion phone numbers to identify and block spam. Developed by Ayago Dev, the application has gained significant traction with millions of worldwide users, offering both automated protection and manual blocking capabilities through its blacklist feature. The absence of available user reviews limits direct feedback analysis, but the app's 4.4-star rating suggests generally positive reception in the Google Play ecosystem. The core functionality revolves around real-time caller identification and automated blocking systems. When an incoming call occurs, the app cross-references the number against its extensive database to display caller information before the user answers. The automatic blocking feature operates through continuously updated spam lists, while the manual blacklist allows users to permanently block specific numbers. Additional features include community-based reporting where users can flag new spam numbers, contributing to the collective database that powers the blocking algorithms. User experience centers on simplicity and minimal configuration, with the app designed to work immediately after installation. The interface follows standard Android design patterns with clear toggle switches for enabling/disabling features and straightforward management of blocked numbers. Real-world usage patterns show most users keeping the automatic blocking active continuously, while periodically reviewing blocked calls logs to ensure legitimate numbers aren't accidentally filtered. The app operates silently in the background without requiring constant user interaction once configured. Without specific user reviews available for analysis, general performance must be assessed through the app's stated capabilities and market position. The high rating suggests satisfactory performance for most users, though the lack of detailed feedback makes it difficult to identify specific pain points or exceptional praise. Potential users should note that caller ID accuracy may vary depending on regional database coverage and that some advanced features might require premium subscriptions despite the core offering being free. The application demonstrates clear strengths in automated protection and database scale, though limitations may include potential false positives and dependency on crowd-sourced data accuracy. Ideal for users receiving frequent spam calls from unknown numbers, the app serves particularly well for those preferring set-and-forget functionality rather than manual call screening. Business professionals and individuals receiving high volumes of unsolicited calls would benefit most from its persistent background protection.