Sound Amplifier: Hear Boost
Super Hearing Volume Booster
About
Amplify and clarify audio in real-time, turning your phone into a powerful hearing aid. Instantly replay the last 30 seconds of sound and boost volume beyond normal limits. Works with any headphones and in background mode for convenience.
What's New in Sound Amplifier
1.0.4
February 3, 2026
Bug fixes and performance improvements.
Subscription plans
Weekly Premium
Unlock unlimited hearing amplification
In-App Purchases
$14.99
Premium
Unlock unlimited hearing amplification
Developer apps
FAQ
What is Sound Amplifier: Hear Boost?
Sound Amplifier: Hear Boost is a utility app that transforms your iPhone into a powerful sound amplifier and volume booster. It helps you hear conversations and other audio sources more clearly in real-time, especially in noisy environments.
Does Sound Amplifier: Hear Boost have ads?
No, Sound Amplifier: Hear Boost does not contain advertisements. The app is free to download and use, with optional in-app purchases for premium features.
How does the Instant Replay feature work in Sound Amplifier: Hear Boost?
The Instant Replay feature allows you to instantly rewind and listen again to the last 30 seconds of audio. This is useful if you missed something said during a conversation or lecture, allowing you to hear it again, louder and clearer.
What headphones are compatible with Sound Amplifier: Hear Boost?
Sound Amplifier: Hear Boost works with any headphones, including wired earbuds, AirPods, and other Bluetooth headsets. For the best experience with zero latency, wired headphones are recommended.
Can I use Sound Amplifier: Hear Boost with my screen off?
Yes, Sound Amplifier: Hear Boost supports a background mode. You can continue listening and amplifying sound even when your iPhone's screen is off, which helps conserve battery life.
What is the pricing for Sound Amplifier: Hear Boost?
Sound Amplifier: Hear Boost is free to download. It offers subscription plans for premium features, including a Weekly Premium at $6.99/P7D and a Yearly Premium at $34.99/P1Y, which includes a 7-day free trial.
How often is Sound Amplifier: Hear Boost updated?
The latest version of Sound Amplifier: Hear Boost is 1.0.4, which was last updated on February 3, 2026. Updates typically occur to improve performance and add new features.
Is Sound Amplifier: Hear Boost suitable for children?
Sound Amplifier: Hear Boost has an age rating of 12+. While it is a helpful tool for many users, it is not a medical device and should not be used as a substitute for professional hearing care.
