# NFC Proof vs dB Meter

The clearest difference is price: NFC Proof at Free against dB Meter's $12.99. NFC Proof also leads on update cadence (every 2 weeks vs monthly) and iOS requirement (15.6 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

NFC Proof is free to download; dB Meter costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NFC Proof ships an update every 2 weeks, dB Meter monthly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | NFC Proof | dB Meter |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 3 MB | 4 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [The NFC Mint LLC](https://appshunter.io/developer/725418088) | [Birkan Aksoy](https://appshunter.io/developer/1626910993) |

## What reviewers say

### NFC Proof

[App page](https://appshunter.io/ios/app/nfc-proof/id6754207988)

**In-app purchases:** none


### dB Meter

[App page](https://appshunter.io/ios/app/db-meter-sound-level/id6784445985)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NFC Proof free?

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

### Is dB Meter free?

dB Meter costs $12.99, with no in-app purchases.

### Do NFC Proof or dB Meter have ads?

Neither NFC Proof nor dB Meter shows ads.

### Which is updated more often, NFC Proof or dB Meter?

NFC Proof ships an update every 2 weeks, and dB Meter monthly. Most recently, NFC Proof was updated on October 7, 2026 and dB Meter on October 5, 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.*