# dBMeter Pro vs White Lightning SmartGPU

The clearest difference is price: White Lightning SmartGPU at Free against dBMeter Pro's $5.99. White Lightning SmartGPU also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.6). On update cadence, ads and in-app purchases there is nothing between them.

White Lightning SmartGPU is free to download; dBMeter Pro costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

dBMeter Pro ships an update every 5 months, White Lightning SmartGPU every 3 months. The most recent releases landed on September 25, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | dBMeter Pro | White Lightning SmartGPU |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/dbmeter-pro/id296264086/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 56.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 6 MB | 37 MB |
| Requires iOS | 17.6 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matthias Schorer](https://appshunter.io/developer/290579382) | [Audio Authority](https://appshunter.io/developer/1089628227) |

## What reviewers say

### dBMeter Pro

[App page](https://appshunter.io/ios/app/dbmeter-pro/id296264086)

This application transforms your iPhone into a sound level meter for analyzing ambient noise or testing audio equipment. It offers dual-input measurement, a contextual reference guide, and long-term data logging up to 12 hours. Data can be exported for further analysis.

**Highlights:** Dual-input measurement, Contextual reference guide, Long-term data logging, CSV data export, External microphone support

**In-app purchases:** none


### White Lightning SmartGPU

[App page](https://appshunter.io/ios/app/white-lightning-smartgpu/id6503616986)

**In-app purchases:** none


## Frequently asked questions

### Is dBMeter Pro free?

dBMeter Pro costs $5.99, with no in-app purchases.

### Is White Lightning SmartGPU free?

White Lightning SmartGPU is free to download, with no in-app purchases.

### Do dBMeter Pro or White Lightning SmartGPU have ads?

Neither dBMeter Pro nor White Lightning SmartGPU shows ads.

### Which is updated more often, dBMeter Pro or White Lightning SmartGPU?

dBMeter Pro ships an update every 5 months, and White Lightning SmartGPU every 3 months. Most recently, dBMeter Pro was updated on September 25, 2026 and White Lightning SmartGPU on September 13, 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.*