# DSI vs MB Quart MB

DSI and MB Quart MB are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | DSI | MB Quart MB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/dsi-x2/id6751246225/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Monthly |
| Monetization | Free | — |
| Size | 40 MB | 56 MB |
| Requires iOS | 13 | **12.2** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [DD Audio](https://appshunter.io/developer/599474306) | [伟 陈](https://appshunter.io/developer/1837176650) |

## What reviewers say

### DSI

[App page](https://appshunter.io/ios/app/dsi-x2/id6751246225)

Fine-tune your car audio system with this app, offering comprehensive control over equalization, phase, crossovers, and time alignment. Designed for both professionals and enthusiasts, it unlocks the full potential of your audio equipment through an intuitive interface.

**Highlights:** 6 Customizable Presets, 15 band Parametric Equalizer, Phase Correction, Crossover Adjustments, Automatic Time Alignment, Intuitive Input Mixing

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

**In-app purchases:** none


### MB Quart MB

[App page](https://appshunter.io/ios/app/mb-quart-mb-dsp68/id6756109320)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DSI free?

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

### Is MB Quart MB free?

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

### Do DSI or MB Quart MB have ads?

Neither DSI nor MB Quart MB 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.*