Amplify sound and adjust listening levels on your iPhone
Sound Amplifier is a simple sound amplifier and audio booster for adjusting gain, shaping tone with a 7 band equalizer, and exporting enhanced audio in seconds. Import audio files, choose a preset, fine tune your sound, and save processed…

Why people use Sound Amplifier
Highlights taken from the app's current App Store listing.
Important
Sound Amplifier is not a medical device and is not a substitute for professional hearing aids, diagnosis, treatment, or medical care.
Import audio files
Import audio files, choose a preset, fine tune your sound, and save processed WAV files from one clean interface.
You can import audio files
You can import audio files, process them with your preferred settings, export enhanced audio as WAV, and share it quickly.
A dedicated history tab also makes
A dedicated history tab also makes it easy to review previous exports and keep track of your processed files.
Premium removes export limits.
Premium removes export limits.
How it works
A simple starting workflow for amplify sound and adjust listening levels.
Choose the audio setup
Select an audio source and connect the headphones or speaker you plan to use.
Adjust carefully
Start at a moderate level, then change the available sound controls gradually.
Listen and save
Preview the result, protect your hearing, and save or share when the sound is right.
Frequently asked questions
Quick answers — each one links to a full guide when there's more to know.
What does Sound Amplifier do?
Is Sound Amplifier free?
Which iPhone version does Sound Amplifier support?
How does Sound Amplifier handle privacy?
When was Sound Amplifier last updated?
Try Sound Amplifier on iPhone
Open the official App Store listing for the latest features, compatibility, pricing, and privacy details.