# Speed Tracker Plus vs Decibel Meter & Dosimeter

The clearest difference is in-app purchases: Speed Tracker Plus at none against Decibel Meter & Dosimeter's 3. Speed Tracker Plus also leads on iOS requirement (15.1 vs 17.0). Decibel Meter & Dosimeter's advantage is update cadence (every 3 weeks vs every 15 months). On price, ads and device support there is nothing between them.

Both are free to download. Decibel Meter & Dosimeter sells 3 in-app purchases, starting at $0.99 per 7 days. Speed Tracker Plus asks for nothing beyond the download.

Speed Tracker Plus ships an update every 15 months, Decibel Meter & Dosimeter every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Speed Tracker Plus | Decibel Meter & Dosimeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (18 ratings)](https://appshunter.io/ios/app/decibel-meter-and-dosimeter/id6740248468/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 61 MB | 23 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LogixITS](https://appshunter.io/developer/1670618863) | [Mobile Card Games & Travel Apps LLC](https://appshunter.io/developer/453389232) |

## What reviewers say

### Speed Tracker Plus

[App page](https://appshunter.io/ios/app/speed-tracker-plus/id6739834462)

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

**In-app purchases:** none


### Decibel Meter & Dosimeter

[App page](https://appshunter.io/ios/app/decibel-meter-and-dosimeter/id6740248468)

This app transforms your iPhone into a professional sound level meter. It provides real-time decibel monitoring, instant feedback on noise intensity, and smart notifications for safety limits. Track your noise exposure over time with detailed history and exportable reports.

**Highlights:** Real-time decibel monitoring, Noise exposure limit tracking, Detailed noise history, Exportable reports, Smart notifications, Professional calibration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $0.99 | per 7 days |
| Annual Subscription | $24.99 | per year |
| Pro - NIOSH Noise Exposure | $4.99 | one-time |


## Frequently asked questions

### Is Speed Tracker Plus free?

Speed Tracker Plus is free to download, with no in-app purchases.

### Is Decibel Meter & Dosimeter free?

Decibel Meter & Dosimeter is free to download, with in-app purchases available.

### Do Speed Tracker Plus or Decibel Meter & Dosimeter have ads?

Neither Speed Tracker Plus nor Decibel Meter & Dosimeter shows ads.

### Which is updated more often, Speed Tracker Plus or Decibel Meter & Dosimeter?

Speed Tracker Plus ships an update every 15 months, and Decibel Meter & Dosimeter every 3 weeks. Most recently, Speed Tracker Plus was updated on October 25, 2026 and Decibel Meter & Dosimeter on October 24, 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.*