# Sound Meter Plus vs Jarnex

The clearest difference is price: Jarnex at Free against Sound Meter Plus's $2.99. Jarnex also leads on rating (4.4 vs 1.0) and update cadence (every 10 months vs every 39 months). Sound Meter Plus's advantage is iOS requirement (12.0 vs 14.0). On ads, in-app purchases and device support there is nothing between them.

Jarnex is free to download; Sound Meter Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Jarnex holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Jarnex has 9 ratings behind it against 1, so its average is the more settled of the two.

Sound Meter Plus ships an update every 39 months, Jarnex every 10 months. The most recent releases landed on October 30, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Sound Meter Plus | Jarnex |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/sound-meter-plus/id1612179628/reviews) | **[4.4 (9 ratings)](https://appshunter.io/ios/app/jarnex/id6468264003/reviews)** |
| Number of ratings | 1 | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 10 months** |
| Monetization | Paid | **Free** |
| Size | 10 MB | 227 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [EasternCCTV USA LLC](https://appshunter.io/developer/1459962536) |

## What reviewers say

### Sound Meter Plus

[App page](https://appshunter.io/ios/app/sound-meter-plus/id1612179628)

This utility tool measures environmental noise and displays decibel (dB) values. It offers features like starting/stopping recordings, saving data to camera roll or files, and showing average, minimum, and maximum dB levels with a graph. Calibration options are also available.

**Highlights:** Measure environmental noise in decibels, Start/stop sound recording, Save dB data to Camera Roll or Files app, Display average, min, and max dB values, Visualize dB levels with a graph, Calibrate decibel readings

**Features:** macOS Compatibility

**In-app purchases:** none


### Jarnex

[App page](https://appshunter.io/ios/app/jarnex/id6468264003)

Control and automate your smart home devices remotely. Manage multiple devices simultaneously, set timers for automated operations, and share access with family members. Enjoy hands-free control with voice assistant integration and receive timely notifications about your devices.

**Highlights:** Remote device management, Simultaneous control, Automated timers, Device sharing, Voice assistant integration, Custom scene creation, Device status notifications

**In-app purchases:** none


## Frequently asked questions

### Is Sound Meter Plus free?

Sound Meter Plus costs $2.99, with no in-app purchases.

### Is Jarnex free?

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

### Which has better reviews, Sound Meter Plus or Jarnex?

Jarnex is rated higher. Sound Meter Plus averages 1.0 out of 5 from 1 ratings, while Jarnex averages 4.4 from 9 ratings.

### Do Sound Meter Plus or Jarnex have ads?

Neither Sound Meter Plus nor Jarnex shows ads.

### Which is updated more often, Sound Meter Plus or Jarnex?

Sound Meter Plus ships an update every 39 months, and Jarnex every 10 months. Most recently, Sound Meter Plus was updated on October 30, 2026 and Jarnex on November 3, 2026.

---

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