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Sound Booster・Increase Volume is an audio volume tool for Android phones and tablets. It is intended for people who find their device’s output too quiet and want to raise the level of music, videos or other audio. Prometheus Interactive LLC is the developer, and the app is listed in Music & Audio.
The app is described as a way to boost sound through a phone or tablet speaker, headphones and connected Bluetooth speakers. Its controls are also presented for audio from games and video, as well as music. It may suit someone who regularly listens on a device whose normal output feels low, or who wants a volume control for different kinds of audio in one place.
Sound adjustment is also described for ringtones, alarms and voice calls, so its intended use goes beyond playing music. The app mentions an equalizer for changing how audio sounds, including bass. Results can vary with the device, headphones or speaker being used, and the source audio; raising a control does not guarantee clearer sound. This is a utility for changing playback level and sound character, rather than a music library or streaming service.
