# Loudly vs dB Meter Pro

The clearest difference is in-app purchases: dB Meter Pro at none against Loudly's 1. Loudly's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Loudly sells 1 one-off in-app purchase. dB Meter Pro asks for nothing beyond the download.

Loudly ships an update every 4 days, dB Meter Pro every 3 weeks. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Loudly | dB Meter Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/loudly-decibel-meter-db/id6759638121/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 8 MB |
| Requires iOS | **26.0** | 26.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Pragmatiq](https://appshunter.io/developer/1620893651) | [Kouki Yoshimoto](https://appshunter.io/developer/1884780659) |

## What reviewers say

### Loudly

[App page](https://appshunter.io/ios/app/loudly-decibel-meter-db/id6759638121)

Transform your iPhone into a precise sound level meter. It measures noise in real-time with a clear visual display and offers professional features for various uses, from monitoring baby rooms to protecting your hearing. All processing is done on-device with no data collection.

**Highlights:** Real-time decibel measurements, IEC 61672 compliant audio engine, A-weighting and C-weighting filters, Fast, Slow, and Impulse time weighting, Calibration controls, Min/Max/Average statistics (Pro), Session history (Pro)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Loudly Pro | $2.99 | one-time |


### dB Meter Pro

[App page](https://appshunter.io/ios/app/db-meter-pro/id6766442893)

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

**In-app purchases:** none


## Frequently asked questions

### Is Loudly free?

Loudly is free to download, with in-app purchases available.

### Is dB Meter Pro free?

dB Meter Pro is free to download, with no in-app purchases.

### Do Loudly or dB Meter Pro have ads?

Neither Loudly nor dB Meter Pro shows ads.

### Which is updated more often, Loudly or dB Meter Pro?

Loudly ships an update every 4 days, and dB Meter Pro every 3 weeks. Most recently, Loudly was updated on October 9, 2026 and dB Meter Pro on October 14, 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.*