# NoisePro OSHA dB Meter vs Lyestone

The clearest difference is update cadence: Lyestone at every 5 days against NoisePro OSHA dB Meter's every 5 weeks. Lyestone also leads on price ($0.99 vs $1.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

NoisePro OSHA dB Meter costs $1.99 and Lyestone $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NoisePro OSHA dB Meter ships an update every 5 weeks, Lyestone every 5 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | NoisePro OSHA dB Meter | Lyestone |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/noisepro-osha-db-meter/id6757671453/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 12 MB | 4 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TRIMECH Dhaker](https://appshunter.io/developer/1832697893) | [Robert Corbin](https://appshunter.io/developer/1890247992) |

## What reviewers say

### NoisePro OSHA dB Meter

[App page](https://appshunter.io/ios/app/noisepro-osha-db-meter/id6757671453)

This tool transforms your iPhone into a field noise inspection assistant. It measures ambient sound levels in real time, allowing you to select various workplace noise standards and track exposure limits. Generate professional reports for documentation and follow-up.

**Highlights:** Real-time ambient sound level measurement, Support for OSHA, NIOSH, and international standards, View action levels and exposure limits, Name inspections by site or client, Track peaks and threshold breaches, Export PDF reports and CSV data, Calibration offset for reference meters

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

**In-app purchases:** none


### Lyestone

[App page](https://appshunter.io/ios/app/lyestone-soap-batch-planner/id6777543152)

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

**In-app purchases:** none


## Frequently asked questions

### Is NoisePro OSHA dB Meter free?

NoisePro OSHA dB Meter costs $1.99, with no in-app purchases.

### Is Lyestone free?

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

### Do NoisePro OSHA dB Meter or Lyestone have ads?

Neither NoisePro OSHA dB Meter nor Lyestone shows ads.

### Which is updated more often, NoisePro OSHA dB Meter or Lyestone?

NoisePro OSHA dB Meter ships an update every 5 weeks, and Lyestone every 5 days. Most recently, NoisePro OSHA dB Meter was updated on October 31, 2026 and Lyestone on October 31, 2026.

---

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