# DeciTrack: Decibel Meter & Log — Measure and log noise anywhere

> Measure and log noise anywhere (iPhone/iPad app by Ryo Kawafune.)

- Source: https://appshunter.io/ios/app/decitrack-decibel-meter-and-log/id6782025348 (this page in markdown: same URL + `.md`)
- Developer: [Ryo Kawafune](https://appshunter.io/developer/6780804499)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 12 MB
- Languages: American English, Japanese
- Released: 2026-07-01
- Data updated: 2026-08-28
- User reviews in markdown: https://appshunter.io/ios/app/decitrack-decibel-meter-and-log/id6782025348/reviews.md

## What is DeciTrack?

DeciTrack turns your iPhone into an instant decibel meter.

LIVE METER
Point at any sound source — conversation, traffic, concert, machinery — and watch the real-time dB SPL gauge respond immediately.

LOG & GRAPH
Tap Record to save a reading with average dB, peak dB, and duration. Build a history over time, visualize trends on a line chart, and label each entry for easy reference.

EXPORT
Pro users can export the full log as a CSV file to share or analyze in any spreadsheet app.

ON-DEVICE & PRIVATE
All processing happens on your device. No account, no cloud sync, no data collection.

DECITRACK PRO
Unlock unlimited logs, CSV export, calibration offset, and an ad-free experience via monthly, yearly, or lifetime purchase.

DISCLAIMER
DeciTrack provides approximate sound level estimates using your device's built-in microphone. Results vary by device model, case, and environment. This app is not a replacement for a certified or calibrated sound level meter and should not be used for regulatory, legal, or occupational health compliance.

Subscription terms: Payment charged to Apple ID at confirmation. Auto-renews unless cancelled 24+ hours before period end. Manage in Settings.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| DeciTrack Pro (Yearly) | $19.99 | per year |
| DeciTrack Pro (Monthly) | $3.99 | per month |



## Version history (last 5 releases)

### 1.0.6 — 2026-08-21

• Fixed the app showing the wrong language for your device settings
• Fixed permission dialogs that could appear in the wrong language
• Fixed screens where translations were not being applied

### 1.0.5 — 2026-08-06

Stability and reliability improvements.

### 1.0.4 — 2026-07-28

Refreshed the design and improved usability. Thanks for using the app!

### 1.0.3 — 2026-07-14

Feature improvements and stability fixes

### 1.0.2 — 2026-07-06

• The current sound level is now announced with VoiceOver
• Stability improvements

## More apps by Ryo Kawafune

- [集中タイマー ポモ育て](https://appshunter.io/ios/app/id6780804497)
- [RestMix: Sleep Sound Mixer](https://appshunter.io/ios/app/restmix-sleep-sound-mixer/id6781571895)
- [Tilestreak: Habit Tracker Grid](https://appshunter.io/ios/app/tilestreak-habit-tracker-grid/id6781572330)
- [Dotmood: Mood & Year in Pixels](https://appshunter.io/ios/app/dotmood-mood-and-year-in-pixels/id6781572756)
- [Widgnest: Widget Maker & Lock](https://appshunter.io/ios/app/widgnest-widget-maker-and-lock/id6781572802)
- [Solo Focus: ADHD Task Timer](https://appshunter.io/ios/app/solo-focus-adhd-task-timer/id6781573465)

All apps by Ryo Kawafune: https://appshunter.io/developer/6780804499

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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 2026-08-28.*