# CJDecibel vs Securico Security App

The clearest difference is ads: Securico Security App at none against CJDecibel's shown. CJDecibel's advantage is update cadence (weekly vs every 6 months) and iOS requirement (11.0 vs 13.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CJDecibel ships an update weekly, Securico Security App every 6 months. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | CJDecibel | Securico Security App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cjdecibel-noise-detection/id6479873232/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 6 months |
| Monetization | Ad-supported | — |
| Size | 37 MB | 52 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [炽金 练](https://appshunter.io/developer/1523269489) | [Oryx Systems CC](https://appshunter.io/developer/966072104) |

## What reviewers say

### CJDecibel

[App page](https://appshunter.io/ios/app/cjdecibel-noise-detection/id6479873232)

This utility app offers real-time, high-precision decibel measurements to detect noise levels. It features a minimalist interface for easy operation, allows recording of detection locations, and enables sharing or exporting of historical data.

**Highlights:** Real-time decibel measurement, High-precision detection, Location recording, Data sharing and export, Detection history viewing

**Features:** macOS Compatibility

**In-app purchases:** none


### Securico Security App

[App page](https://appshunter.io/ios/app/securico-security-app/id6745818761)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CJDecibel free?

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

### Is Securico Security App free?

Securico Security App is free to download, with no in-app purchases.

### Do CJDecibel or Securico Security App have ads?

CJDecibel shows ads; Securico Security App does not.

### Which is updated more often, CJDecibel or Securico Security App?

CJDecibel ships an update weekly, and Securico Security App every 6 months. Most recently, CJDecibel was updated on October 24, 2026 and Securico Security App on October 5, 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.*