# ClearTone: Sound Amplifier

> ClearTone: Sound Amplifier (iPhone/iPad app by haidi liu.)

- Source: https://appshunter.io/ios/app/cleartone-sound-amplifier/id6767839046 (this page in markdown: same URL + `.md`)
- Developer: [haidi liu](https://appshunter.io/developer/1896513242)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 2 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-05-30
- Data updated: 2026-09-14
- User reviews in markdown: https://appshunter.io/ios/app/cleartone-sound-amplifier/id6767839046/reviews.md

## What is ClearTone?

ClearTone is a real-time personal sound amplifier designed to help you hear conversations, television, and everyday sounds more clearly — all through your Bluetooth earphones.

HOW IT WORKS
Simply connect your Bluetooth earphones, tap the power button, and ClearTone instantly amplifies the sounds around you. Your iPhone's built-in microphone captures ambient audio, processes it in real time, and delivers clear, amplified sound directly to your ears.

KEY FEATURES
• Real-time sound amplification, adjustable from 100% up to 1500%
• Neural noise reduction (RNNoise) — reduces background noise, fan hum, and rustling sounds
• Multi-band clarity boost tuned for speech
• Automatic feedback (squeal) detection and suppression
• Independent left and right ear volume control
• Built-in hearing check that tests each ear separately and personalises your sound
• Tinnitus relief: gentle pink noise masking
• Works with AirPods, AirPods Pro, and all Bluetooth A2DP earphones

ABOUT BLUETOOTH DELAY
Bluetooth earphones add roughly 0.2 seconds of audio delay. This is a limitation of Bluetooth itself, not of ClearTone. It means the app works best for television, meetings, and voices at a distance. In close face-to-face conversation you may notice the sound arriving slightly late. The app shows the measured delay on its home screen.

DESIGNED FOR EVERYDAY LISTENING
ClearTone is ideal for:
• Watching television at a comfortable volume
• Following conversations in noisy environments
• Hearing clearly in meetings, restaurants, or public spaces
• Anyone who wants a personal volume boost without a hearing aid

IMPORTANT NOTICE
ClearTone is a general wellness audio utility, similar in function to Apple's built-in "Live Listen" feature. It is NOT a hearing aid, and is NOT intended to diagnose, treat, cure, or prevent any medical condition. If you have significant hearing loss, please consult a licensed audiologist or hearing healthcare professional.

REQUIREMENTS
• iPhone with iOS 16.0 or later
• Bluetooth earphones (A2DP compatible)
• Microphone permission required

Terms of Use: https://cleartone.dzmatrix.com/terms
Privacy Policy: https://cleartone.dzmatrix.com/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly | $14.99 | per month |
| Yearly | $59.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Access | $129.99 | one-time |



## Version history (last 5 releases)

### 1.7.43 — 2026-09-09

• Sign in with your phone number to restore a purchase you made offline.
  You will receive a one-time code by SMS.

• You can now delete your account from within the app, under Settings.

• Clearer progress and error messages while signing in, so you always know
  what the app is doing.

• Improved handling of feedback (whistling) at high amplification levels.

• Various stability fixes.

### 1.7.38 — 2026-09-07

This is a major update built from real-world testing with users.

• 7-day free trial — every feature unlocked, no card required
• Fixed a bug where amplification could silently stop after a few minutes even with your Bluetooth headphones still connected
• Feedback squeal near your headphones is now detected and calmed automatically
• Hearing test now checks each ear separately, and your personal results are blended with our built-in clarity boost instead of replacing it
• Louder, clearer amplification with a redesigned volume scale shown in percent
• Noise reduction slider now snaps to clear 5% steps, so it is easy to return to a setting you like
• Smoother recovery after phone calls, Bluetooth reconnects, and app interruptions
• General stability improvements

### 1.7.5 — 2026-09-03

Sound enhancement now resumes automatically after phone calls. Wider, finer volume range. Streamlined noise reduction with a smaller download. Stability fixes.

### 1.6.3 — 2026-08-22

• Significantly louder and clearer — amplification works immediately from the moment you turn it on
• High-frequency consonants (s, f, th) are enhanced for age-related hearing loss
• Fixed: AI noise reduction now properly resumes after phone calls
• Improved Bluetooth headphone compatibility

### 1.5.89 — 2026-08-07

Enhanced Bluetooth audio clarity, improved neural noise reduction performance, and ultra-low latency processing for a clearer everyday listening experience.

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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 2026-09-14.*