Hear My Baby Heartbeat Monitor positions itself as a leading pregnancy application that transforms standard iPhone hardware into a fetal heart monitoring device. Developed by Fat Cigar Productions Ltd, the app leverages the device's built-in microphone to capture and amplify fetal heart sounds, providing expectant parents with an accessible alternative to clinical monitoring equipment. With a 3.87/5 rating across iOS platforms, the application has garnered significant attention in the prenatal care space. The core functionality revolves around audio detection algorithms that filter ambient noise while amplifying fetal heart signals. The application processes audio input in real-time, providing visual feedback through waveform displays and heart rate calculations. Recording capabilities allow users to capture sessions for later review or sharing with family members. Bluetooth headphone compatibility, particularly with Apple Airpods, enhances private listening experiences while maintaining safety standards by avoiding excessive volume output. User experience centers on a minimalist interface designed for straightforward operation during pregnancy. The main screen features prominent recording controls with secondary menus for reviewing saved sessions and adjusting sensitivity settings. Real-world usage typically involves applying the phone's microphone to the abdomen during quiet periods, with optimal results reported between 18-40 weeks of pregnancy. The interface provides clear audio feedback and heart rate numerical readouts, though successful detection often requires patience and proper positioning technique. While specific dated user reviews are unavailable, the developer highlights two representative testimonials that reflect common user experiences. Niki's comment regarding 'time and patience' acknowledges the learning curve involved, while Legretta's initial skepticism followed by satisfaction suggests the app delivers value despite usability challenges. These anecdotes align with the application's mixed rating, indicating that while functional, consistent results require practice and understanding of limitations. The application's primary strength lies in providing affordable fetal monitoring accessibility, though medical professionals caution that it should supplement rather than replace professional prenatal care. Detection reliability varies significantly based on fetal position, maternal anatomy, and environmental factors. Ideal use cases involve emotional bonding experiences rather than medical diagnosis, with best results occurring during later pregnancy stages when heart sounds are more distinguishable.