# AlertaDelta vs Noise Reducer & Enhancer

The clearest difference is in-app purchases: AlertaDelta at none against Noise Reducer & Enhancer's 8. Noise Reducer & Enhancer's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Noise Reducer & Enhancer sells 7 in-app purchases, starting at $2.99 per 7 days. AlertaDelta asks for nothing beyond the download.

AlertaDelta ships an update every 3 months, Noise Reducer & Enhancer every 3 weeks. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | AlertaDelta | Noise Reducer & Enhancer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.1 (8 ratings)](https://appshunter.io/ios/app/noise-reducer-and-enhancer/id6748647645/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 112 MB | 44 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Delta Security Invest Inc.](https://appshunter.io/developer/1687545481) | [Bryan Keller](https://appshunter.io/developer/1826797664) |

## What reviewers say

### AlertaDelta

[App page](https://appshunter.io/ios/app/alertadelta/id6449044251)

**Features:** Vision Pro support

**In-app purchases:** none


### Noise Reducer & Enhancer

[App page](https://appshunter.io/ios/app/noise-reducer-and-enhancer/id6748647645)

Enhance audio and video by removing unwanted background noise. Record clean audio or process existing media, with options to compare original and cleaned versions. Export in various formats for versatile use.

**Highlights:** Background noise removal, Audio and video enhancement, Direct microphone recording, Import media from gallery/files, Side-by-side comparison, Multiple export formats (MP4, WAV, MP3), Built-in media player

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Weekly | $4.99 | per 7 days |
| Weekly | $4.99 | per 7 days |
| Weekly-Trial | $4.99 | per 7 days |
| Monthly | $12.99 | per month |
| Yearly | $19.99 | per year |
| Yearly | $39.99 | per year |


## Frequently asked questions

### Is AlertaDelta free?

AlertaDelta is free to download, with no in-app purchases.

### Is Noise Reducer & Enhancer free?

Noise Reducer & Enhancer is free to download, with in-app purchases available.

### Do AlertaDelta or Noise Reducer & Enhancer have ads?

Neither AlertaDelta nor Noise Reducer & Enhancer shows ads.

### Which is updated more often, AlertaDelta or Noise Reducer & Enhancer?

AlertaDelta ships an update every 3 months, and Noise Reducer & Enhancer every 3 weeks. Most recently, AlertaDelta was updated on November 7, 2026 and Noise Reducer & Enhancer on November 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*