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Sound Booster・Increase Volume is an Android audio utility from Prometheus Interactive LLC. It is intended for people who want to make music, video and other device audio louder through their phone or connected speakers and headphones. The app also describes controls for adjusting sound, including bass and an equalizer.
The app aims to boost playback from the phone’s loudspeaker or audio accessories, rather than serving as a music library or streaming service. Its stated uses include listening to music, watching videos and playing games. It also presents itself as a way to raise ringtone and alarm volume, and says it can affect call audio. The result can vary with the phone, the audio source and the connected device; a volume control cannot guarantee clearer sound.
Amplifying sound may make it easier to hear quiet playback, but higher volume can also make audio uncomfortable or distort it. Increase levels cautiously, especially when using headphones. The information provided here does not specify whether the app contains ads, offers in-app purchases, or what phone permissions it requests, so those details should be checked on its store listing before you decide.
Sound Booster・Increase Volume is listed in Music & Audio, with a rating of 4.76 out of 5 from 422,936 reviews and more than 10 million installs. Those figures indicate broad use and strong feedback, but they do not tell you whether its controls suit your device or whether its data and payment terms fit your preferences.
