Volume Booster & Equalizer

Volume Booster & Equalizer makes your music, movies, audiobooks and podcasts sound louder and clearer - with an honest, hardware-safe loudness enhancer and a full 5-band equalizer.

Tired of quiet speakers or flat sound? Volume Booster & Equalizer uses Android's built-in audio engine (Loudness Enhancer, Equalizer, Bass Boost, Virtualizer and Reverb) to enhance the sound of every app that plays media: music players, YouTube, streaming, games and video calls.

Everything is grouped into three tabs - Boost, Tune and Extras - with the master switch pinned above them, so no control is more than a tap away.

★ VOLUME & LOUDNESS BOOST
• Increase media loudness by up to +15 dB with the system Loudness Enhancer
• One simple slider - boost the sound of your speaker, headphones or Bluetooth
• Safety zones: green below 60%, amber up to 85%, red above - with a warning before you go loud
• Media volume control right inside the app

★ ONE-TAP SOUND MODES
• 8 modes: Flat, Music, Bass, Vocal, Movie, Game, Outdoor and Night
• Each mode sets the equalizer, bass, virtualizer and reverb together
• Touch any slider and the mode steps aside - your hand tuning always wins

★ 5-BAND EQUALIZER
• Precise vertical sliders for lows, mids and highs
• 15 built-in curves that sound the same on every device
• Music presets: Normal, Classical, Dance, Flat, Folk, Heavy Metal, Hip Hop, Jazz, Pop, Rock (device presets)
• Create and keep your own custom sound curve
• Save multiple presets with your own names and switch in one tap
• Your settings are saved and restored automatically

★ BASS BOOSTER
• Deep, punchy bass for music and movies
• Smooth strength control from subtle to strong

★ VIRTUALIZER (3D SURROUND) & REVERB
• Wider, more spacious stereo image on headphones
• Reverb from small room to concert hall
• Great for movies and live recordings

★ SLEEP TIMER & OUTPUT PROFILES
• Sleep timer fades the volume down over 10 seconds, then switches the effects off
• Speaker, wired headphones and Bluetooth each keep their own preset and boost level
• Optional: switch the effects on by themselves when music starts playing

★ WORKS EVERYWHERE
• Applies to the global audio output - works with your favorite music player, video apps and games
• Keeps running in the background with a small notification, so your sound stays boosted
• Lightweight, fast, no account and no sign-up

★ TELLS YOU WHERE IT REACHES
• "Which players get the effects" lists the players that announce their own audio session — those get the effects applied directly to them
• Everything else goes through the global session, and the app says so instead of promising it works with every app
• The list never leaves your device and can be cleared any time
• Each output now remembers its volume level too, under the headphone safety limit

★ QUICK CONTROLS
• Home-screen widget for one-tap boost
• Quick Settings tile and notification controls — adjust without opening the app
• Headset auto profile — your headphone preset applies automatically when you plug in
• Three themes: dark, true-black AMOLED and light

★ SAFE & TRANSPARENT
Volume Booster & Equalizer uses only the official Android audio effects. It cannot push your hardware beyond its physical limits - instead it maximizes loudness intelligently and warns you before levels that could damage your speaker or hearing. All audio processing happens on your device and no audio is ever recorded or uploaded. The app does use Firebase Analytics and Crashlytics to see which features get used and to catch crashes; you can switch that off in Settings.

Note: on a small number of devices the manufacturer's own audio processing may limit some effects. The app will tell you and the remaining effects will keep working.