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.

It uses Android's built-in audio engine (Loudness Enhancer, Equalizer, Bass Boost, Virtualizer and Reverb). Boost, Tune and Extras sit in three tabs under the master switch, 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
• Plus your device's own presets, and your own curves saved under your own names

★ BASS, 3D SURROUND & REVERB
• Deep, punchy bass with a smooth strength control
• Wider stereo on headphones; reverb from small room to concert hall

★ 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

★ TELLS YOU WHERE IT REACHES
• Players that announce their audio session get the effects directly; the rest go through the global session. "Which players get the effects" shows the list, which never leaves your device
• Runs in the background with a small notification. No account, no sign-up

★ VOLUME SCENES & PER-APP LEVEL
• Save media, ringtone, notification, alarm and call volume as a scene and switch in one tap, with Undo
• Link a scene to your headphones or car Bluetooth so it applies when they connect
• Give a supported music player its own level, always within the safe listening cap
• 3 scenes, 1 linked device and 1 player level are free; more with Premium or Boost Points

★ GENTLER ON SPEAKERS AND EARS
• Speaker guard: on the phone speaker at high boost it eases the deep bass the speaker can't play and keeps a peak limiter on. Turn it off in Settings
• Gentle connect: when headphones connect, media volume rises over 2 seconds
• Soft start eases the boost in from every switch, widget and routine

★ QUICK CONTROLS
• Previous, play/pause and next under the boost slider and on the small widget
• Home-screen widget, Quick Settings tile and notification controls
• Headset auto profile — your headphone preset applies automatically when you plug in
• Three themes: dark, true-black AMOLED and light

★ FREE TO START · PREMIUM
• Core Boost, Tune and Extras controls are free
• Unlock selected advanced controls for 24 hours with Boost Points or an optional rewarded Unity Ads video
• Premium unlocks all Premium controls and removes full-screen ads. Monthly, yearly (3-day trial where offered) and lifetime plans are available through Google Play Billing
• Free users see Unity Ads only; AdMob and banner ads are disabled

★ SAFE & TRANSPARENT
Uses official Android audio effects only. The app cannot exceed your hardware limits and warns before levels that may damage speakers or hearing. Audio is processed on-device; nothing is recorded or uploaded. Firebase Analytics and Crashlytics are optional 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.

Recent changes:
• NEW Boost timer: the boost turns itself off after 15–120 min (Extras tab)
• Quick boost buttons: long-press to save your own level
• Free version: a small banner and an occasional ad when you leave Settings — never while you listen. Premium stays ad-free
• Watch a short video for free Boost Points
• Ad privacy choices in Settings › About