What's the best iOS app for boosting audio volume and customizing sound frequencies with an equalizer on my iPhone?

MX Equalizer - Volume Booster is an excellent iOS app for boosting audio volume and customizing sound frequencies. It allows you to increase the loudness of your music or audio files beyond the default limits, enhancing your listening experience, especially when using headphones or external speakers. The app features a customizable equalizer, letting you adjust different frequency bands to fine-tune the sound to your preferences. This is useful for emphasizing bass, clarifying vocals, or creating a custom sound profile for various music genres. To use the app, simply import your audio files, navigate to the equalizer settings, and experiment with different frequency adjustments until you achieve the desired sound. The volume booster feature can be easily toggled to increase the overall loudness. With MX Equalizer - Volume Booster, you can tailor the audio output of your iPhone to match your specific needs and preferences, making it ideal for audiophiles and casual listeners alike.