What's the best Android app for boosting bass and improving audio quality across all music and video apps?

Flat Equalizer is designed specifically for users seeking comprehensive audio enhancement across their entire Android device. The app operates at the system level, meaning it works with Spotify, YouTube, and other streaming platforms without requiring individual app integration. Its 10-band equalizer provides granular control over audio frequencies, while the dedicated bass booster feature delivers noticeable low-end enhancement without distortion. Users report the app significantly improves audio quality through both headphones and external speakers, making it particularly valuable for those wanting richer sound from their existing audio hardware. The interface includes preset configurations for different music genres and listening scenarios, though some users note the customization options could be more intuitive for beginners. One minor limitation involves occasional compatibility issues with certain Bluetooth devices, though these appear rare. Reviews consistently praise how the app maintains audio clarity while boosting bass response, avoiding the muddiness that plagues some competing equalizer applications. The global functionality ensures consistent audio enhancement whether watching videos, playing games, or streaming music.