# Marts Digital vs SixTen DSP Bluetooth Control

The clearest difference is rating: SixTen DSP Bluetooth Control at 2.4 against Marts Digital's 2.2. SixTen DSP Bluetooth Control also leads on review sentiment (11% vs 0%) and update cadence (every 9 months vs every 17 months). Marts Digital's advantage is iOS requirement (12.2 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SixTen DSP Bluetooth Control holds the better App Store score, 2.4 against 2.2. Both are backed by a comparable volume of ratings — 11 and 16 respectively. Written reviews point the same way: 0% of Marts Digital's written reviews are positive against 11% of SixTen DSP Bluetooth Control's.

Marts Digital ships an update every 17 months, SixTen DSP Bluetooth Control every 9 months. The most recent releases landed on September 20, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Marts Digital | SixTen DSP Bluetooth Control |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (11 ratings)](https://appshunter.io/ios/app/marts-digital/id6738837858/reviews) | **[2.4 (16 ratings)](https://appshunter.io/ios/app/sixten-dsp-bluetooth-control/id6743507284/reviews)** |
| Number of ratings | 11 | **16** |
| Positive reviews | 0.0% of reviews | **11.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 9 months** |
| Monetization | Free | Free |
| Size | 59 MB | 63 MB |
| Requires iOS | **12.2** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Guang Dong Sound Power](https://appshunter.io/developer/1760446092) | [B2 AUDIO](https://appshunter.io/developer/1803253771) |

## What reviewers say

### Marts Digital

[App page](https://appshunter.io/ios/app/marts-digital/id6738837858)

This application allows users to debug car audio devices by adjusting various parameters via a Bluetooth connection. It provides a digital interface for fine-tuning audio settings directly from a smartphone.

**Highlights:** Car audio device debugging, Bluetooth parameter adjustment, Digital interface for audio settings, Smartphone control

**Features:** macOS Compatibility

**In-app purchases:** none


### SixTen DSP Bluetooth Control

[App page](https://appshunter.io/ios/app/sixten-dsp-bluetooth-control/id6743507284)

Fine-tune your car audio system with advanced sound customization via Bluetooth. Adjust crossovers, EQ, gain, and more for a perfect listening experience.

**Highlights:** Precision Crossover Adjustments, 31-Band Parametric EQ, Gain Control, Limiters & Delays, Polarity & Phase Control, Independent Left/Right Routing, Real-Time Monitoring, Save & Recall Presets

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Marts Digital free?

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

### Is SixTen DSP Bluetooth Control free?

SixTen DSP Bluetooth Control is free to download, with no in-app purchases.

### Which has better reviews, Marts Digital or SixTen DSP Bluetooth Control?

SixTen DSP Bluetooth Control is rated higher. Marts Digital averages 2.2 out of 5 from 11 ratings, while SixTen DSP Bluetooth Control averages 2.4 from 16 ratings.

### Do Marts Digital or SixTen DSP Bluetooth Control have ads?

Neither Marts Digital nor SixTen DSP Bluetooth Control shows ads.

### Which is updated more often, Marts Digital or SixTen DSP Bluetooth Control?

Marts Digital ships an update every 17 months, and SixTen DSP Bluetooth Control every 9 months. Most recently, Marts Digital was updated on September 20, 2026 and SixTen DSP Bluetooth Control on September 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.*