# Sound Amplifier: Hear Boost — Super Hearing Volume Booster

> Real-time sound amplification and volume boosting tool for enhanced hearing. (iPhone/iPad app by Lash Karetski.)

- Source: https://appshunter.io/ios/app/sound-amplifier-hear-boost/id6756648714 (this page in markdown: same URL + `.md`)
- Developer: [Lash Karetski](https://appshunter.io/developer/1797093827)
- Category: Utilities
- Price: Free with in-app purchases
- Rating: 4.70/5 from 6 App Store ratings
- Age rating: 12+
- Requires: iOS 17.6 · 10 MB
- Languages: American English
- Released: 2026-01-12
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sound-amplifier-hear-boost/id6756648714/reviews.md

## What is Sound Amplifier?

Turn your iPhone into a powerful Sound Amplifier & Volume Booster.

Never miss a conversation again. Whether you are in a noisy restaurant, a lecture hall, or watching TV, this app amplifies sound in real-time and brings clarity directly to your headphones.

  EXCLUSIVE FEATURE: INSTANT REPLAY
  Did you miss what they just said? Don't ask them to repeat.

  • Tap the "Replay" button to instantly rewind the last 30 seconds of audio.
  • Listen again, louder and clearer.

  TOP FEATURES:
  • Sound Amplifier: Boost volume beyond normal limits for crystal clear hearing.
  • Microphone Boost: Uses your phone's advanced microphone to capture distant sounds.
  • Works with Any Headphones: Compatible with AirPods, Bluetooth headsets, and wired earbuds.
  • Background Mode: Continue listening even when your screen is off to save battery.
  • Live Waveform: See the sound visualization in real-time.

  PERFECT FOR:
  • Conversations in crowded places.
  • Hearing the TV without blasting the volume.
  • Lectures, meetings, and interviews.
  • Anyone needing a temporary hearing boost.

  SIMPLE & PRIVATE:
  No account required. No data collection. Just plug in your headphones and tap the Power button.

  COMPATIBILITY:
  Works best with wired headphones for zero latency. Also supports AirPods and Bluetooth devices (A2DP).

  Note: This app is a sound amplification tool and is not a medical device.

  —
  Subscription automatically renews unless canceled at least 24 hours before the period ends. Manage subscriptions in Settings > Apple ID.
  Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
  Privacy Policy: https://sites.google.com/view/hearing-aid-app/accueil

## Key features

- Real-time sound amplification
- Instant 30-second audio replay
- Microphone boost for distant sounds
- Background listening mode
- Live sound waveform visualization
- Works with wired and wireless headphones

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly Premium | $6.99 | per 7 days |
| Yearly Premium | $34.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium | $14.99 | one-time |



## Frequently asked questions about Sound Amplifier

### 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.

## Version history (last 3 releases)

### 1.0.4 — 2026-02-03

Bug fixes and performance improvements.

### 1.0.3 — 2026-01-30

Bug fixes and performance improvements.

### 1.0.2 — 2026-01-12

No release notes.

## Apps similar to Sound Amplifier

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Spy Hearing](https://appshunter.io/ios/app/spy-hearing/id6766551476) | 4.9 (41) | Free | Utilities |
| [Hearing Clear : Sound Boost](https://appshunter.io/ios/app/hearing-clear-sound-boost/id6741506134) | — | Free | Utilities |
| [Hear Better from Distance](https://appshunter.io/ios/app/hear-better-from-distance/id6758640193) | — | Free | Utilities |
| [SoundAid AI Voice Amplifier](https://appshunter.io/ios/app/soundaid-ai-voice-amplifier/id6747009020) | 5.0 (3) | Free | Utilities |
| [Hearing Aid: Sound Booster App](https://appshunter.io/ios/app/hearing-aid-sound-booster-app/id6754331432) | 5.0 (1) | Free | Utilities |
| [Hearing Amplify : Clear Sound](https://appshunter.io/ios/app/hearing-amplify-clear-sound/id6738649841) | — | Free | Utilities |

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All apps by Lash Karetski: https://appshunter.io/developer/1797093827

## Related topics

[hearing aid sound amplifier](https://appshunter.io/ios/topics/hearing-aid-sound-amplifier) · [sound amplifier live](https://appshunter.io/ios/topics/sound-amplifier-live) · [video sound amplifier](https://appshunter.io/ios/topics/video-sound-amplifier) · [spy hearing free](https://appshunter.io/ios/topics/spy-hearing-free)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*