Hearing Aid · Sound Amplifier

Voice Booster & Noise Reducer

汇杭 钟
App Store rating4.5★274 ratings
PriceFreeIn-app $6.99–$89.99
Age4+Store age rating
Size21 MBiPhone download
CategoryHealth & Fitness
Developer汇杭 钟

What we found

Full report

Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.

Money

  • Free to download · in-app purchases $6.99–$89.99 (4 listed). Weekly plan $6.99 (about $363 a year); monthly plan $9.99 (about $120 a year); yearly plan $39.99.
  • If you subscribe through the store, cancel in iPhone Settings → your name → Subscriptions. Deleting the app doesn’t cancel a subscription.

Not yet tested.

The store currently lists version 2.1, updated 2026-05-19.

Preview

Screenshot 1Screenshot 2Screenshot 3Screenshot 4Screenshot 5Screenshot 6Screenshot 7Screenshot 8

Store screenshots supplied by the developer.

About this app

Turn your phone into a powerful sound amplifier and hearing aid

Hear clearly again. Whether boosting TV audio, conversations, or environmental sounds, this app delivers crystal-clear amplified sound straight to your headphones.

> KEY FEATURES

· 8x Volume Boost - Powerful amplification for louder, clearer audio

· Real-Time Sound Enhancement - Smart noise reduction & loudness protection

· Background Mode - Keep amplifying while using other apps

· Simple Interface - Designed for effortless one-tap operation

· Headphone Optimized - Works with AirPods, Bluetooth & wired headphones

> PERFECT FOR

· Hearing Assistance - Use your phone as a personal hearing aid

· Better TV Audio - Boost any speaker or sound source

· Clearer Conversations - Hear soft voices and distant speakers

· Wireless Listening - Pair with AirPods or any Bluetooth headphones

> HOW IT WORKS

1.…

From the developer’s store description.

For developers and the curious

The full report

The evidence, sources, measurements and versions behind every label above.

Findings and evidence

Not yet tested
Not yet tested. No analysis has been published for this app. A missing label is not a clean bill of health.

What reviewers report

No review coverage

No review analysis published for this app.

Measurements

3 measured · 5 not assessed

“Not assessed” means we could not measure it. It is never a zero and never a pass.

From store data and reviews

Developer replies to reviews
Not assessed
Fewer than 50 reviews scanned — too few to state a rate
Price in the store description
The store description doesn’t list prices (most don’t)
Cancelling, in the store description
The store description says how to cancel
Themes reported by reviewers
Not assessed
This app's reviews have not been assessed yet
Five-star share of ratings
65–79% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.

In the app package we scanned

No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.

Sensitive permissions
Not assessed
No package has been scanned for this app
Analytics or tracking SDKs in the scanned package
Not assessed
No package has been scanned for this app
Advertising SDKs in the scanned package
Not assessed
No package has been scanned for this app
How we know

Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured

Versions and dates analysed

Not yet tested

Not yet tested. No analysis has been run for this app, so there is no version or date to report.

Store update history

Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.

App Store

Version 2.1 · 2026-05-19
What's new in 2.1: · Clearer voices — refined noise reduction for noisy rooms · Drag-smooth volume slider — no more audio jitter while adjusting · Redesigned audio tuning panel — easier to find your best sound · Fixed: home screen sometimes stuck on "Connect Headphones" after route change · Fixed: rare audio dropout when answering a call Questions or feedback? [email protected]

Assessment record

Status
Not yet tested
App identifier
hearing-aid-sound-amplifier
Sources used
None recorded
Reviews read
None recorded
Package examined
No package scan
Human inspection
Not completed
How we know
Measurement vocabulary
1.4

Store facts

App Store

What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.

App Store

Store rating
4.46 ★ · 274 ratings
Version
2.1
Updated
19 May 2026
Price
Free · In-app purchases
Age rating
4+
Size
21 MB
Open in App Store
Developer
汇杭 钟
Category
Health & Fitness
Listing price
Free · In-app purchases

Purchases the store lists

 What this app sells

From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.

Subscriptions3
Premium · WeeklyWeekly$6.99
Premium for 1 monthMonthly$9.99
Premium · YearlyYearly$39.99
Buy once1
Premium · LifetimeLifetime$89.99

Method and limits

What this report can and cannot show

What a missing label means

Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.

Limits of this report

  • A package scan is static. It identifies code and text in one Android build. It does not measure a live ad session, test a deletion request, or count the steps needed to cancel.
  • Reviews keep their sample. A review-only charge shows distinct reviewers, the share and the sample size, and is published only once it clears that label’s published threshold. Calibration labels are machine-drafted and not yet confirmed by a person.
  • Not assessed is a state. It is never a zero and never a pass.
  • A missing label is not a clean bill of health. It means the evidence did not support one, not that the app is problem-free.
Not yet human-reviewed. A human review gives an app hands-on, recorded measurements. None has been run for this app. Hands-on inspections are not yet open.

Request a correction

[email protected]

Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.