# dB vs Smart App Link

The clearest difference is in-app purchases: dB at none against Smart App Link's 2. Smart App Link's advantage is device support (3 vs 1) and iOS requirement (14.0.0 vs 16.0). On price and ads there is nothing between them.

Both are free to download. Smart App Link sells 2 in-app purchases, starting at $9.99 per year. dB asks for nothing beyond the download.

## The numbers

| Metric | dB | Smart App Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (18 ratings)](https://appshunter.io/ios/app/db-meter/id635309215/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | Free | — |
| Size | 6 MB | 35 MB |
| Requires iOS | 16.0 | **14.0.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kurenz Music GbR](https://appshunter.io/developer/544695186) | [FUSION ISTANBUL BILISIM HIZMETLERI LIMITED SIRKETI](https://appshunter.io/developer/1831004401) |

## What reviewers say

### dB

[App page](https://appshunter.io/ios/app/db-meter/id635309215)

This application measures sound pressure levels in decibels using a retro-style design. It displays both average and peak levels in real-time, with digital readouts alongside analog meters.

**Highlights:** Measures sound pressure in decibels (dB), Retro-style analog display, Real-time average and peak level readings, Digital value readout, High-frequency sampling (44.1 kHz)

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

**In-app purchases:** none


### Smart App Link

[App page](https://appshunter.io/ios/app/smart-app-link/id6739869803)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Package | $9.99 | per year |
| Lifetime Access | $19.99 | one-time |


## Frequently asked questions

### Is dB free?

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

### Is Smart App Link free?

Smart App Link is free to download, with in-app purchases available.

### Do dB or Smart App Link have ads?

Neither dB nor Smart App Link 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.*