# Decibel Meter Ultra vs Tech NFC

The clearest difference is in-app purchases: Tech NFC at none against Decibel Meter Ultra's 7. Tech NFC also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.6). On price and ads there is nothing between them.

Both are free to download. Decibel Meter Ultra sells 4 in-app purchases, starting at $7.99 per 7 days. Tech NFC asks for nothing beyond the download.

## The numbers

| Metric | Decibel Meter Ultra | Tech NFC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (2.6K ratings)](https://appshunter.io/ios/app/decibel-meter-ultra/id1643525961/reviews)** | — |
| Number of ratings | **2.6K** | — |
| Positive reviews | 43.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 92 MB | 3 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | +12 | 4+ |
| Developer | [Ultrafine](https://appshunter.io/developer/1558108175) | [Hamaton Limited](https://appshunter.io/developer/1789574836) |

## What reviewers say

### 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


### Tech NFC

[App page](https://appshunter.io/ios/app/tech-nfc/id1659405420)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Meter Ultra free?

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

### Is Tech NFC free?

Tech NFC is free to download, with no in-app purchases.

### Do Decibel Meter Ultra or Tech NFC have ads?

Neither Decibel Meter Ultra nor Tech NFC shows ads.

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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.*