# SoundTrace: Decibel Meter dB — Measure & Record Sound Levels

> App to measure, visualize, and record ambient sound levels in decibels. (iPhone/iPad app by Tapronix.)

- Source: https://appshunter.io/ios/app/soundtrace-decibel-meter-db/id6746351315 (this page in markdown: same URL + `.md`)
- Developer: [Tapronix](https://appshunter.io/developer/1814479334)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 2 MB
- Languages: American English, Bulgarian, Croatian, Czech, Dutch, Finnish, French (France), German (Germany), Greek, Hindi and 22 more
- Released: 2025-05-29
- Data updated: 2026-08-16
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/soundtrace-decibel-meter-db/id6746351315/reviews.md

## What is SoundTrace?

SoundTrace is your smart companion for measuring, visualizing, and recording ambient sound. Whether you're checking noise levels at home, in the studio, or on the job site, SoundTrace gives you clear, calibrated decibel readings with a beautiful interface and powerful session logging.

Core Features:

- Live Decibel Meter: Monitor real-time sound levels using your device’s microphone.

- Input Selection: Use internal or external mics (USB/Bluetooth) and label them automatically.

- Waveform & Line Graphs: Choose how you visualize sound — dynamic waveform bars or a smooth dB line graph.

- Session Logging: Save recorded sessions with timestamped graphs and stats like min, max, and average dB.

- Mic Calibration: Adjust for hardware differences with a custom calibration offset.

- Unlimited Session Storage: Keep as many recordings as you want.*

- Audio Playback: Re-listen to recorded sessions directly in-app.*

- PDF Export: Generate and share detailed session reports.*

- Custom Titles: Name your sessions for better organization and recall.*

* Pro version only.

## Key features

- Live decibel meter
- Internal/external mic selection
- Waveform and line graph visualization
- Session logging with stats
- Microphone calibration
- PDF export of session reports

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Version Upgrade | $2.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/soundtrace-decibel-meter-db/id6746351315/reviews.md

### 5/5 — Great app for what I needed

*2025-06-05*

Used to measure a before and after sound proofing. Pretty cool to see the difference, it’s a basic app but does the job. Love the design btw.

## Frequently asked questions about SoundTrace

### What is SoundTrace used for?

SoundTrace is used to measure, visualize, and record ambient sound levels in decibels. It provides real-time monitoring, session logging with graphs and statistics, and the ability to export detailed reports.

### Does SoundTrace have ads?

No, SoundTrace does not contain advertisements. It offers a free experience with optional in-app purchases for advanced features.

### What devices does SoundTrace support?

SoundTrace is available for iPhone and iPad devices, offering a consistent experience across Apple's mobile platforms.

### How accurate are the decibel readings?

The app provides calibrated decibel readings using your device's microphone. It includes a mic calibration feature to adjust for hardware differences, enhancing accuracy.

### Can I save my sound recordings?

Yes, you can save recorded sessions with timestamped graphs and statistics. The Pro version offers unlimited session storage and audio playback of recorded sessions.

### What are the Pro version features?

The Pro version of SoundTrace includes unlimited session storage, audio playback of recorded sessions, PDF export of detailed reports, and custom session titles for better organization.

### How often is SoundTrace updated?

The latest version of SoundTrace is 1.2, last updated on October 24, 2025. Updates typically include improvements and new features based on user feedback and development cycles.

### What is the age rating for SoundTrace?

SoundTrace has an age rating of 4+, making it suitable for a wide range of users, including children, to explore sound measurement.

## Version history (last 5 releases)

### 1.2 — 2025-10-24

- Introduced the new Export Audio feature
- Improved overall app stability and interface responsiveness

### 1.1.3 — 2025-09-16

— iOS 26 compatibility
— Performance and stability improvements

### 1.1.2 — 2025-06-15

- Improved the UI layout on iPad
- Added in-app language support for following languages: Arabic, Bulgarian, Czech, German, Greek, Spanish, Spanish (Latin America), Finnish, French, Hindi, Croatian, Hungarian, Indonesian, Italian, Japanese, Korean, Lithuanian, Norwegian Bokmål, Dutch, Polish, Portuguese (Brazil), Portuguese (Portugal), Romanian, Russian, Slovak, Slovenian, Swedish, Telugu, Thai, Turkish, Ukrainian, Urdu, Vietnamese, Chinese (Simplified)

### 1.1 — 2025-06-08

Rebuilt live waveform with GPU-accelerated for a better performance
Refreshed UI for a cleaner, modern look
New live glow effect added to average sound stats when they change values

### 1.0 — 2025-05-30

No release notes.

## Apps similar to SoundTrace

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Yuja Decibel Meter - dB Level](https://appshunter.io/ios/app/yuja-decibel-meter-db-level/id6759799015) | — | Free | Utilities |
| [JOY CHECK](https://appshunter.io/ios/app/joy-check/id6479681992) | — | Free | Utilities |
| [Theta-Meter](https://appshunter.io/ios/app/theta-meter/id1541332058) | — | Free | Utilities |
| [dB Meter: Measure Noise SPL](https://appshunter.io/ios/app/db-meter-measure-noise-spl/id6771299057) | — | Free | Utilities |
| [Sound Level Meter: Decibel](https://appshunter.io/ios/app/sound-level-meter-decibel/id6745488403) | — | Free | Utilities |
| [Drive Notes - Vehicle Tracker](https://appshunter.io/ios/app/drive-notes-vehicle-tracker/id6757875592) | — | Free | Utilities |

## More apps by Tapronix

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All apps by Tapronix: https://appshunter.io/developer/1814479334

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-16.*