# Decibel Meter Pro vs Aura Notes AI

The clearest difference is rating: Decibel Meter Pro at 3.5 against Aura Notes AI's 1.0. Decibel Meter Pro also leads on update cadence (every 5 days vs every 6 weeks). Aura Notes AI's advantage is ads (none vs shown) and iOS requirement (15.5 vs 17.6). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. Decibel Meter Pro sells 1 one-off in-app purchase and Aura Notes AI sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Decibel Meter Pro holds the better App Store score, 3.5 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Decibel Meter Pro ships an update every 5 days, Aura Notes AI every 6 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Decibel Meter Pro | Aura Notes AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/decibel-meter-pro-sound-level/id6779537617/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/aura-notes-ai/id6780815439/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 15 MB | 75 MB |
| Requires iOS | 17.6 | **15.5** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alper Sumer Guc](https://appshunter.io/developer/1896672915) | [Van Hai Nguyen](https://appshunter.io/developer/1883968791) |

## What reviewers say

### Decibel Meter Pro

[App page](https://appshunter.io/ios/app/decibel-meter-pro-sound-level/id6779537617)

Transform your device into a professional sound level meter. Analyze noise in dB, dBA, and dBC, view frequency spectrums, and understand your safe noise exposure limits. Record, prove, and share measurements with detailed reports and location data.

**Highlights:** Real-time spectrum analyzer, Live spectrogram, Noise dose tracking, Loud-sound alerts, Audio recording and playback, CSV data export, Calibration

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Decibel Meter - Premium | $2.99 | one-time |


### Aura Notes AI

[App page](https://appshunter.io/ios/app/aura-notes-ai/id6780815439)

Record, transcribe, and summarize your audio with an AI-powered voice assistant. Transform spoken words into accurate text and generate concise summaries with key takeaways. Ideal for professionals, students, and creators to boost productivity and capture important details.

**Highlights:** High-quality audio recording, Instant AI transcription, Smart AI summaries, Multi-language support, Organize and search notes, Intuitive interface

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aura Notes AI Premium Monthly | $3.99 | per month |
| Aura Notes AI Premium Yearly | $34.99 | per year |


## Frequently asked questions

### Is Decibel Meter Pro free?

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

### Is Aura Notes AI free?

Aura Notes AI is free to download, with in-app purchases available.

### Which has better reviews, Decibel Meter Pro or Aura Notes AI?

Decibel Meter Pro is rated higher. Decibel Meter Pro averages 3.5 out of 5 from 2 ratings, while Aura Notes AI averages 1.0 from 1 ratings.

### Do Decibel Meter Pro or Aura Notes AI have ads?

Decibel Meter Pro shows ads; Aura Notes AI does not.

### Which is updated more often, Decibel Meter Pro or Aura Notes AI?

Decibel Meter Pro ships an update every 5 days, and Aura Notes AI every 6 weeks. Most recently, Decibel Meter Pro was updated on November 3, 2026 and Aura Notes AI on October 31, 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.*