# ai.Audio Controller vs Decibel Meter Ultra

The clearest difference is rating: Decibel Meter Ultra at 4.6 against ai.Audio Controller's 2.5. Decibel Meter Ultra also leads on update cadence (every 10 days vs every 5 months) and ratings volume (2.6K vs 2). ai.Audio Controller's advantage is device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. ai.Audio Controller sells 1 one-off in-app purchase and Decibel Meter Ultra sells 4 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Decibel Meter Ultra holds the better App Store score, 4.6 against 2.5. That said, the two scores are not equally well evidenced: Decibel Meter Ultra has 2.6K ratings behind it against 2, so its average is the more settled of the two.

ai.Audio Controller ships an update every 5 months, Decibel Meter Ultra every 10 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | ai.Audio Controller | Decibel Meter Ultra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/aiaudio-controller/id1638449704/reviews) | **[4.6 (2.6K ratings)](https://appshunter.io/ios/app/decibel-meter-ultra/id1643525961/reviews)** |
| Number of ratings | 2 | **2.6K** |
| Positive reviews | — | 43.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 9 MB | 92 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | +12 |
| Developer | [Narcyz Adamus](https://appshunter.io/developer/1092865008) | [Ultrafine](https://appshunter.io/developer/1558108175) |

## What reviewers say

### ai.Audio Controller

[App page](https://appshunter.io/ios/app/aiaudio-controller/id1638449704)

Control your ROTEL audio system with precision. Adjust volume, tone, and input, and sync power across multiple devices. Offers fine-tuned sensitivity and safety features for an enhanced listening experience.

**Highlights:** Volume, balance, and tone control, Sync power and dimming, Configurable max volume limit, Alternative button mode with haptic feedback, Multichannel/surround setup support, Automatic device detection, Widgets for scenes and monitoring

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Functionality | $14.99 | one-time |


### Decibel Meter Ultra

[App page](https://appshunter.io/ios/app/decibel-meter-ultra/id1643525961)

Measure, record, and analyze sound levels in your environment. This app offers precision metering, noise elimination tools, hearing protection features, and home audio calibration. It provides detailed reports and can be used with device microphones or external ones.

**Highlights:** Precision sound level metering, Noise logging and reporting, Hearing protection dosimeter, Fractional octave band analysis, Real-time analyzer, External microphone support

**Features:** iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Access | $7.99 | per 7 days |
| PRO Access | $11.99 | per month |
| PRO Access | $39.99 | per year |
| PRO Access | $39.99 | per year |

**What reviewers like**

- 🎨 Aesthetically pleasing design
- 🔍 Useful noise monitoring features
- 🔍 Ability to collect noise evidence

**What reviewers complain about**

- 💰 Expensive subscription pricing
- 🚫 Misleading free trial claims
- 🚫 Difficult to cancel subscription
- 🔍 Inconsistent noise level readings

**Reported bugs**

- Subscription charges continue after cancellation
- Subscription cancellation page doesn't load

**Requested features**

- Lower subscription pricing
- Improve subscription cancellation process


## Frequently asked questions

### Is ai.Audio Controller free?

ai.Audio Controller is free to download, with in-app purchases available.

### Is Decibel Meter Ultra free?

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

### Which has better reviews, ai.Audio Controller or Decibel Meter Ultra?

Decibel Meter Ultra is rated higher. ai.Audio Controller averages 2.5 out of 5 from 2 ratings, while Decibel Meter Ultra averages 4.6 from 2.6K ratings.

### Do ai.Audio Controller or Decibel Meter Ultra have ads?

Neither ai.Audio Controller nor Decibel Meter Ultra shows ads.

### Which is updated more often, ai.Audio Controller or Decibel Meter Ultra?

ai.Audio Controller ships an update every 5 months, and Decibel Meter Ultra every 10 days. Most recently, ai.Audio Controller was updated on November 3, 2026 and Decibel Meter Ultra on November 3, 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.*