# Smart AMP — AlgorKorea PSA app

> AlgorKorea PSA app (iPhone/iPad app by AlgorKorea Co., Ltd..)

- Source: https://appshunter.io/ios/app/smart-amp/id1438078177 (this page in markdown: same URL + `.md`)
- Developer: [AlgorKorea Co., Ltd.](https://appshunter.io/developer/1173452285)
- Category: Lifestyle, Health & Fitness
- Price: $1.99
- Age rating: 4+
- Requires: iOS 10.0 · 10 MB
- Languages: American English, Korean
- Released: 2019-01-09
- Data updated: 2026-08-24
- User reviews in markdown: https://appshunter.io/ios/app/smart-amp/id1438078177/reviews.md

## What is Smart AMP?

[WARNING !]
If you use a sound amplifier without a doctor's prescription, your hearing can get worse.
Be sure to plug-in your earphone or pair your bluetooth headset with your mobile phone before starting the app.


AlgorKorea's hearing aid firmware & app development technology created Personal Sound Amplifier (PSA) app that performs microphone & receiver calibration, includes all of the same four features as a smart hearing aid. The Personal Sound Amplifier app produces loud volume for profound hearing loss.

64 Channel Nonlinear precise Compression, Noise Reduction based on probabilistic analysis and Feedback Cancellation are the main features of AlgorKorea sophisticated Personal Sound Amplifier app. All of the three algorithms are implemented in real-time with high sound quality for hearing impairments.

The output audio level may be slightly different based on mobile phone’s volume settings, microphone and earphone/headset types.

Just make sure your IOS version is 10.0 or higher.


## Version history (last 4 releases)

### 1.0.4 — 2023-06-25

1. Update minor bug fix

### 1.0.3 — 2020-02-14

Added korean language.

### 1.0.2 — 2020-01-08

1. Earphone play pause button ignored.
2. Setting default value changed.
3. Setting interface changed.
4. Changed app icon.

### 1.0.0 — 2019-01-09

No release notes.

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## More apps by AlgorKorea Co., Ltd.

- [Hearing Aid Smart](https://appshunter.io/ios/app/hearing-aid-smart/id1173452286)
- [Hearing Smart 5920](https://appshunter.io/ios/app/hearing-smart-5920/id1226894627)
- [Hearing Smart CSR](https://appshunter.io/ios/app/hearing-smart-csr/id1229528829)
- [DRM+ SDR](https://appshunter.io/ios/app/drm-plus-sdr/id1475044823)
- [Clear AMP](https://appshunter.io/ios/app/clear-amp/id1493506572)

All apps by AlgorKorea Co., Ltd.: https://appshunter.io/developer/1173452285

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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 2026-08-24.*