Sound Booster: Volume Up 300%
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About this app
Turn your media volume up past 100% — safely.
Sound Booster amplifies your device's audio beyond its normal limit, so quiet
videos, music and calls finally get loud enough. Real amplification, not a fake
slider.
WHAT MAKES IT DIFFERENT
• Keeps your home screen — unlike some boosters, we never replace your launcher.
• Minimal permissions — no location, no phone, no usage-access, no biometrics.
• Hearing protection built in — headphone caps, automatic fade-down and a
one-time safety notice before you go above 100%.
• No account, no sign-in, no ad the moment you finish onboarding.
FEATURES
• Boost dial — one big control from 0% to 200% (up to 300% in settings), with a safe green/amber/red zone.
• 5 volume streams on one screen — media, ringtone, alarm, notifications, system.
• Presets — Movie, Music, Call and Sleep, or save your own.
• Quick Settings tile, home-screen widget and a notification control.
• Works in the background so your boost stays on.
IMPORTANT
Volume above 100% is amplified beyond your device's normal limit. Extended
listening at high volume can damage your hearing, and the loudest settings may
distort your speaker. Please listen responsibly.
No launcher takeover. No location. Just louder sound.
Sound Booster amplifies your device's audio beyond its normal limit, so quiet
videos, music and calls finally get loud enough. Real amplification, not a fake
slider.
WHAT MAKES IT DIFFERENT
• Keeps your home screen — unlike some boosters, we never replace your launcher.
• Minimal permissions — no location, no phone, no usage-access, no biometrics.
• Hearing protection built in — headphone caps, automatic fade-down and a
one-time safety notice before you go above 100%.
• No account, no sign-in, no ad the moment you finish onboarding.
FEATURES
• Boost dial — one big control from 0% to 200% (up to 300% in settings), with a safe green/amber/red zone.
• 5 volume streams on one screen — media, ringtone, alarm, notifications, system.
• Presets — Movie, Music, Call and Sleep, or save your own.
• Quick Settings tile, home-screen widget and a notification control.
• Works in the background so your boost stays on.
IMPORTANT
Volume above 100% is amplified beyond your device's normal limit. Extended
listening at high volume can damage your hearing, and the loudest settings may
distort your speaker. Please listen responsibly.
No launcher takeover. No location. Just louder sound.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
What’s new
Stability improvements and latest Android support
Everyone
Learn moreApp support
About the developer
김현우
developerdoga@gmail.com
김포한강2로 361
707동 2104호
김포시, 경기도 10081
South Korea
