Sound Amplifier
Sound Amplifier Summary
Sound Amplifier is a free Android app in Communication by Google LLC. Released in Feb 2019 (7 years ago). It has about 437.9M+ installs and 92K ratings with a 3.85★ (average) average. Based on AppGoblin estimates, it reaches roughly 37.7M monthly active users . Store last updated Mar 25, 2026
Recent activity: 719K installs this week (4.3M over 4 weeks) showing below average growth , and 93 new ratings this week View trends →
SDK intelligence: AppGoblin detected 2 development tools(e.g. Google),and 1 analytics: product integrated into Sound Amplifier. View full SDK list →
Data tracking: The app's network data flows (API traffic to/from the app and its SDKs) were last crawled on Jun 21, 2025.
Sound Amplifier SDKs Summary
Sound Amplifier was last scanned for SDKs on 2026-09-24. Below is the overview of third-party companies detected in the app. The full list of SDKs, permissions and unknowns is available here.
Google
Kotlin
Firebase3.85★
Ratings: 92K
Screenshots
App Description
Filter, augment, and amplify the sound around you and on your device.
Sound Amplifier makes everyday conversations and surrounding sounds more accessible among people who are hard of hearing, using just your Android phone and a pair of headphones. Use Sound Amplifier to filter, augment, and amplify sounds around you and on your device.
Features
• Reduce unwanted noise to recognize speech better.
• Focus on a speaker’s voice in noisy environments with conversation mode. (Available for Pixel 3 and above.)
• Listen to conversations, TV, or lectures. For audio sources that are farther away, Bluetooth headphones are recommended. (Bluetooth headphones might have delayed sound transmission.)
• Personalize your listening experience for surrounding conversation or media playing on your device. You can reduce noise or boost low frequency, high frequency, or quiet sounds. Set your preferences for both ears or separately for each ear.
• Turn Sound Amplifier on and off using the accessibility button, a gesture, or Quick Settings. Learn more about the accessibility button, gesture and Quick Settings: https://support.google.com/accessibility/android/answer/7650693
Requirements
• Available for Android 8.1 and later.
• Pair your Android device with headphones.
• Conversation mode is currently available on Pixel 3 and above.
Send us your feedback on Sound Amplifier by emailing: sound-amplifier-help@google.com. For help using Sound Amplifier, connect with us at https://g.co/disabilitysupport.
Permissions Notice
• Microphone: Access to the microphone will allow Sound Amplifier to process the audio for amplification and filtering. No data is collected or stored.
• Accessibility Service: Since this app is an accessibility service, it can observe your actions, retrieve window content, and observe text that you type.