Push speaker output beyond the system maximum with a system-level loudness enhancer that boosts up to six decibels.
Android caps speaker output at a conservative level to protect the driver. In quiet rooms that's fine — outdoors or in a noisy car, it's often not loud enough.
Volume Booster taps the LoudnessEnhancer API to add headroom on top of the system maximum. Choose a preset (125%, 150%, 175%, or Max) and audio gets louder instantly through a foreground service that survives app switches.
Step by step
The app launches a persistent foreground service so the boost keeps running while you switch to YouTube, Spotify, or any other app.
125% is safe for daily use. Max adds the full +6,000 millibels — use sparingly to protect your hearing and speaker.
Tap the persistent notification or open the app to disable boost. Volume returns to the system level immediately.
Common questions
Sustained max boost at full volume can stress the driver over time. Stick to 125% or 150% for daily use and only go higher when you genuinely need it.
At higher boost levels, sustained listening exceeds safe exposure limits. Lower the volume when using headphones and take breaks.
A few apps use exclusive audio routing that bypasses system effects. Most music and video apps work; voice-call audio does not.
Keep exploring
Verify your speaker is clear and distortion-free with a thirty-second audio quality check.
Learn moreMeasure how cleanly your speaker reproduces bass, mids, and treble across the audible spectrum.
Learn moreBest practices that keep phone speakers crisp month after month — what to do, what to avoid.
Learn moreFree download
Available on Google Play. 47 languages, Android 11 and up.
