Oticon Companion serves as a dedicated control application for Oticon hearing aid users seeking enhanced management through their Android devices. The application bridges the gap between traditional hearing assistance and modern mobile technology, positioning itself as an essential tool for users wanting personalized auditory experiences. Developed by hearing technology specialist Oticon A/S, the app aims to deliver professional-grade functionality directly to consumers' smartphones. The application's core functionality centers around comprehensive hearing aid management. Users can adjust volume levels individually for each ear or synchronize both devices, providing nuanced sound customization. The program switching feature allows seamless transitions between presets configured by audiologists, while the mute function enables temporary isolation from environmental noise. Battery level monitoring offers practical utility for daily planning, and the SpeechBooster feature (excluding Oticon Opn™ models) enhances vocal clarity by suppressing background noise—particularly valuable in social gatherings or noisy environments. User experience varies significantly based on device compatibility and Bluetooth performance. The interface presents a clean, accessible design with intuitive sliders and toggle switches, though connectivity issues undermine the experience for some users. Real-world usage patterns indicate that successful connections provide smooth operation, with automatic reconnection functioning reliably for some devices. However, many users report needing frequent phone restarts or manual re-pairing, particularly when attempting to connect both hearing aids simultaneously. The transition from previous Oticon ON app has also created some feature regression issues for long-term users. User feedback reveals polarized experiences, with connectivity being the primary concern. David Davies (2025-07-19) reported dramatic improvement after phone upgrade, noting perfect automatic reconnection functionality. Conversely, Lee Richardson (2025-07-01) and Thomas Chmara (2025-06-26) documented persistent Bluetooth issues including single-device connections, audio dropouts, and phone call audio routing problems. These technical limitations appear device-specific rather than universal, with some users reporting flawless operation while others encounter persistent hurdles. The application demonstrates strong potential when functioning correctly, offering meaningful quality-of-life improvements for hearing aid users. Its strengths lie in well-designed control interfaces and practical features like battery monitoring and noise management. However, inconsistent Bluetooth performance across Android devices remains a significant limitation. Ideal usage scenarios involve newer Android devices with robust Bluetooth stacks, where users can benefit from seamless hearing aid integration without technical interruptions. The app represents a step forward in hearing assistance technology when hardware compatibility aligns properly.