# Decibel Meter Plus Pro vs NoCall

The clearest difference is rating: Decibel Meter Plus Pro at 3.7 against NoCall's 2.0. Decibel Meter Plus Pro also leads on ratings volume (81 vs 1). NoCall's advantage is in-app purchases (none vs 1) and update cadence (every 2 weeks vs every 2 months). On review sentiment, ads, monetization model and device support there is nothing between them.

Decibel Meter Plus Pro costs $4.99 and NoCall $0.99 up front. Decibel Meter Plus Pro sells 1 one-off in-app purchase. NoCall asks for nothing beyond the download.

Decibel Meter Plus Pro holds the better App Store score, 3.7 against 2.0. That said, the two scores are not equally well evidenced: Decibel Meter Plus Pro has 81 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 53% of Decibel Meter Plus Pro's written reviews are positive against 50% of NoCall's.

Decibel Meter Plus Pro ships an update every 2 months, NoCall every 2 weeks. The most recent releases landed on October 22, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Decibel Meter Plus Pro | NoCall |
| --- | --- | --- |
| Price | $4.99 | **$0.99** |
| Rating | **[3.7 (81 ratings)](https://appshunter.io/ios/app/decibel-meter-plus-pro/id645214476/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/nocall/id6791478475/reviews) |
| Number of ratings | **81** | 1 |
| Positive reviews | **52.8% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Paid | Paid |
| Size | 12 MB | 6 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [华芳 张](https://appshunter.io/developer/586041482) | [YINGBOX TECHNOLOGY LTD](https://appshunter.io/developer/6803508991) |

## What reviewers say

### Decibel Meter Plus Pro

[App page](https://appshunter.io/ios/app/decibel-meter-plus-pro/id645214476)

Measure the sound levels around you with this utility app. It displays average, peak, and max values, offers decibel exposure time guidelines, and provides information on noise-induced hearing loss. The app also allows data recording and export for analysis.

**Highlights:** Measure sound levels, Display average, peak, and max values, Decibel exposure time guidelines, Information on noise-induced hearing loss, Record and export data, Calibrate measurements, Universal app support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Reports | $4.99 | one-time |


### NoCall

[App page](https://appshunter.io/ios/app/nocall/id6791478475)

This utility app helps users manage personal call blocking lists with a local-first approach. It offers AI assistance for various blocking needs, allowing for quick rule maintenance.

**Highlights:** Personal call blocking, Local-first approach, AI assistant integration, Quick rule maintenance, Call list management

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Meter Plus Pro free?

Decibel Meter Plus Pro costs $4.99, and also offers in-app purchases.

### Is NoCall free?

NoCall costs $0.99, with no in-app purchases.

### Which has better reviews, Decibel Meter Plus Pro or NoCall?

Decibel Meter Plus Pro is rated higher. Decibel Meter Plus Pro averages 3.7 out of 5 from 81 ratings, while NoCall averages 2.0 from 1 ratings.

### Do Decibel Meter Plus Pro or NoCall have ads?

Neither Decibel Meter Plus Pro nor NoCall shows ads.

### Which is updated more often, Decibel Meter Plus Pro or NoCall?

Decibel Meter Plus Pro ships an update every 2 months, and NoCall every 2 weeks. Most recently, Decibel Meter Plus Pro was updated on October 22, 2026 and NoCall on October 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.*