Sound Booster & Equalizer

Sound Booster & Equalizer makes your phone louder and clearer using Android's own audio engine - and it shows you the real number, in dB, on a big dial you can read at a glance. Three pages, one tap each. Boost, Tune and Extras are three tabs right under the master switch, which stays visible at the top of the screen. LOUDER, WITH THE REAL NUMBER • Raise media loudness by up to +15 dB through Android's Loudness Enhancer • A large dashboard dial shows the boost and the exact gain in dB • Safety zones warn you before levels that can distort your speaker or hurt your ears • Soft start eases the boost in instead of slamming it on 5-BAND EQUALIZER • Vertical sliders for lows, mids and highs with the gain above each one • A live curve drawn from what you set • Built-in curves plus your own saved presets • Sound modes: Flat, Music, Bass, Vocal, Movie, Game, Outdoor and Night - one tap sets everything PRO STUDIO • Bass Tuner: a steep low shelf like a subwoofer crossover. Pick the cutoff (40, 60, 80 or 100 Hz) and the gain; only the lows move, so vocals stay clean, and a peak limiter prevents clipping • Quiet Hours: at night the app switches to Night dynamics and caps the boost at a safe level, then restores your settings in the morning • Headphone Library: 87 headphone models with measured correction curves. Browse for free, filter by over-ear, in-ear or earbuds, and apply a profile in one tap SLEEP TIMER AND OUTPUT PROFILES • The sleep timer fades the volume down, then switches the effects off • Speaker, wired headphones and Bluetooth each remember their own preset, boost and volume • Volume lock keeps media volume where you left it QUICK CONTROLS • Home-screen widget, Quick Settings tile and notification controls • Light, dark and true-black AMOLED themes MORE CONTROL OVER YOUR SOUND • Optional 10-band equalizer (31 Hz to 16 kHz) with a preamp • Dynamics: an anti-clip limiter keeps a strong boost clean, and Night mode brings explosions down and dialogue up • Low-volume bass compensation adds back the bass your ears miss at quiet levels • 3D surround virtualizer and reverb, from a small room to a hall • All volumes on one screen: media, alarm, ringtone, notification and call • L/R balance and fine volume steps for uneven earbuds (Premium or a 24-hour unlock) HEARING SAFETY • The safe headphone limit caps the boost on headphones while it is on • After a long stretch of loud listening the app suggests a break and eases the boost down AUDIO LAB AND ROUTINES • Audio Lab: safe listening profile, flat reference curve, headroom advisor, test tones, an effect health check, and copy, paste or share your EQ curve as text • Audio routines apply a sound mode by time, weekday and output FREE TO START · PREMIUM WHEN YOU WANT • Boost, Tune and Extras are free to use, with no ads • Unlock a Pro Studio tool for 24 hours with Boost Points; new users get welcome Boost Points • Premium unlocks every Pro Studio tool - choose monthly, yearly (with a 3-day free trial where offered) or a one-time lifetime purchase • Optional Point Packs are consumable purchases; every payment is processed by Google Play Billing, and subscriptions can be cancelled any time in Google Play HONEST ABOUT ITS LIMITS This app uses only the official Android audio effects. It cannot push your hardware past its physical limits and it does not claim a boost percentage no phone could deliver. The app shows where its effects land: players that announce their audio session get them directly, the rest via the global session. All audio processing happens on your device. Nothing is recorded and no audio is uploaded. The app uses Firebase Analytics and Crashlytics to see which features get used and to catch crashes - you can switch that off in Settings. No account. No sign-up. No ads. Note: some manufacturers run their own audio processing that limits certain effects. When that happens the app tells you, and the remaining effects keep working.