Automatic Call Recorder ACR positions itself as a comprehensive solution for Android users seeking to document phone conversations, with additional features extending beyond basic recording functionality. Developed by Q4U Mobile Apps, this free application operates within the competitive call recording market by offering unlimited recording capacity and supplementary tools like voice memo capture and caller identification services. The application's core functionality centers on automatic dual-channel recording, capturing both sides of phone conversations in various audio formats including WAV, MP3, and AMR. The recording engine automatically activates during calls without requiring manual intervention, though users can configure exclusion lists for specific contacts. Beyond call recording, the app incorporates a standalone voice recorder for ambient audio capture and a caller ID system that cross-references unknown numbers against online databases to provide identification before call acceptance. User experience demonstrates a utilitarian interface with tab-based navigation separating recorded calls, voice memos, and settings. The recording management system allows for organization through custom labels, search functionality, and cloud backup integration with Google Drive. Real-world usage patterns indicate strongest adoption among professionals documenting business agreements, journalists conducting phone interviews, and individuals maintaining personal records of important conversations, though actual implementation varies by regional recording consent laws. With no specific user reviews available for detailed analysis, the application's 3.76/5 rating suggests generally positive reception with some functional limitations. Typical feedback patterns in the call recording category often cite variable recording quality across devices, occasional missed recordings, and interface complexity as common concerns, while praising comprehensive feature sets and reliable operation when properly configured. The application demonstrates strengths in its extensive feature set and cost-free accessibility, though limitations include potential legal compliance complexities across jurisdictions and dependency on device-specific recording capabilities. Ideal use cases involve jurisdictions permitting single-party consent recording, business professionals requiring conversation documentation, and users seeking integrated caller ID functionality alongside recording features.