Volume Booster - Sound Booster

Volume Booster - Sound Booster (AZ Booster) gives your speaker, headphones and Bluetooth speakers extra volume when the phone's maximum is not enough, adds deeper bass, and puts a 10-band equalizer in your hand to shape every song.

Turn one big knob or tap a quick step, and music, videos, movies, podcasts and audiobooks come through bigger and fuller. It follows your phone's keys, keeps working in the background while you use other apps, and needs no root.

A sound booster for speaker and headphones, made for quiet phones, noisy rooms and long trips.

HOW IT WORKS
1. Play music or a video
2. Turn the knob, or tap a quick step up to Max
3. Switch on the equalizer, pick a preset, add bass
4. Leave it on while you use other apps

AN APP TO MAKE PHONE LOUDER
• Quiet phone speaker? This speaker booster app is a speaker volume booster that lifts it past the usual maximum
• Quiet headphones, wired or wireless? A headphone volume booster that is also a Bluetooth volume booster
• Party at home? Fill the room with music: a volume booster for Bluetooth speaker use
• Quick steps from 0 to Max; the volume booster max step asks you to confirm first
• Movie too quiet at the phone's maximum? Tap Max and this extra volume booster becomes a max volume booster
• Increase volume with the keys you already use

EQUALIZER AND BASS
• A music equalizer app with ten bands: bass and treble control
• Presets including Rock, Pop, Hip Hop, Jazz, Classical, EDM, Dance and Bass Boost
• Save your own sound equalizer presets, rename them and switch between them in one tap
• Want bass you can feel? Turn the equalizer bass booster knob, or tap the super bass booster switch
• Virtualizer for wide 3D surround sound on headphones
• Left-right sound balance (some phones), plus a shortcut to your phone's mono audio settings

ONE SOUND BOOSTER APP
• Skip the second app: a volume booster with equalizer presets and a volume booster with bass
• Use the bass booster and equalizer together
• Play music, videos and movies through one volume booster and bass booster app

CONTROL IT FROM ANYWHERE
• Three home-screen widgets, including a volume widget; each opens the volume booster and equalizer app in one tap
• Volume controls in the notification, with more styles in Premium
• Floating volume button (Premium): a floating volume control over other apps; it opens a floating volume slider and the equalizer
• See the song that is playing and open your music player
• Edge lighting: a glowing border while music plays, in your colors, shaped around the notch or punch-hole camera
• Music visualizer: the speakers on screen move with the music (the microphone is used only for this)
• Themes: Classic, plus more with Premium

MORE WAYS PEOPLE USE IT
• Soft video or quiet podcast? Turn the knob in this volume increaser app
• Video hard to hear on the bus? A phone volume booster helps every voice come through
• Small speaker at a picnic? Use it as a high volume booster and loud speaker booster for the playlist
• Watching on the phone? The volume booster for videos lifts quiet voices
• Music on the phone's speaker? Try this volume booster loud speaker app
• Earbuds too quiet? Try an earphone volume booster for headphones, wired or wireless, with a bass booster for headphones on top
• Use it as a music booster, or as a sound enhancer with the presets
• Need a volume increase app or a sound increase app? This volume booster app is simple and quick to learn

WITH OR WITHOUT PREMIUM
The boost, the equalizer and bass booster work without Premium. Premium removes the ads, so AZ Booster becomes a volume booster without ads. It also adds the floating button, every theme, more notification styles and more boost and bass levels.

HEARING AND SPEAKER SAFETY
Listening at high levels for a long time can damage your hearing and your speakers. Go up step by step and stay at a comfortable level, above all with headphones.

Questions or ideas? Use Send Feedback in the app; we read every message.