# Measuring Center vs DSI

The clearest difference is rating: DSI at 3.8 against Measuring Center's 1.0. DSI also leads on review sentiment (57% vs 19%) and ratings volume (8 vs 2). Measuring Center's advantage is update cadence (every 2 months vs every 7 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

DSI holds the better App Store score, 3.8 against 1.0. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews point the same way: 19% of Measuring Center's written reviews are positive against 57% of DSI's.

Measuring Center ships an update every 2 months, DSI every 7 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Measuring Center | DSI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/measuring-center/id1052916114/reviews) | **[3.8 (8 ratings)](https://appshunter.io/ios/app/dsi-2/id1379793450/reviews)** |
| Number of ratings | 2 | **8** |
| Positive reviews | 18.5% of reviews | **57.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | Free |
| Size | 5 MB | 38 MB |
| Requires iOS | 15.6 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kirill Berezin](https://appshunter.io/developer/1052916113) | [DD Audio](https://appshunter.io/developer/599474306) |

## What reviewers say

### Measuring Center

[App page](https://appshunter.io/ios/app/measuring-center/id1052916114)

This application allows users to perform spectral analysis of sound using their mobile devices. It supports various measurement functions and can connect to both wired and wireless external devices, or use the device's built-in microphone.

**Highlights:** Spectral sound analysis, Amplitude-frequency characteristic (AFC) display, Signal waveform display, Total harmonic distortion (THD) measurement, Sound pressure level (SPL) measurement, Support for wired and wireless Spl-Lab devices, Built-in microphone support

**Features:** macOS Compatibility

**In-app purchases:** none


### DSI

[App page](https://appshunter.io/ios/app/dsi-2/id1379793450)

This app provides comprehensive tools to fine-tune your car audio system with a digital signal processor. It offers a straightforward interface for adjusting equalization, phase, crossover, and time alignment for optimal sound.

**Highlights:** Bluetooth 4.0 compatible, 6 customizable presets, 10-band parametric EQ per channel, Phase correction, Crossover adjustments, Time alignment, Input summing and linking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Measuring Center free?

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

### Is DSI free?

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

### Which has better reviews, Measuring Center or DSI?

DSI is rated higher. Measuring Center averages 1.0 out of 5 from 2 ratings, while DSI averages 3.8 from 8 ratings.

### Do Measuring Center or DSI have ads?

Neither Measuring Center nor DSI shows ads.

### Which is updated more often, Measuring Center or DSI?

Measuring Center ships an update every 2 months, and DSI every 7 months. Most recently, Measuring Center was updated on October 23, 2026 and DSI on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*