Measuring Center vs DSI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Measuring Center
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.
- 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
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In modern world tablet PCs or smartphones are playing greater role in our lives. Devices, comparable in power with personal computers, gained a big part of the consumer market, supplanting PCs. For general consumer mobile devices completely replaced the functionality of PC, but specific tasks are still mostly solved using computers. It mostly happens because of the lack of necessary software. Our company goes with the times and offers its customers the possibility of using mobile devices for sound measuring and analysing. We have developed an application for spectral analysis of sound for iOS. The application Measuring Center is simplified version of the program for PC, but it still has its reach functionality. The interface of the program is intuitive and easy to use. It supports both the wired Spl-Lab devices (USB BASS Meter, USB RTA Meter, etc.) and wireless devices, such Next-LCD(WiFi) or Next-USB(WiFi). Also you can make measurements using build-it microphone of your phone or tablet! Functions: Build-it mic support for AFC measurements Measuring the amplitude-frequency characteristic (AFC) of a signal - displaying the spectrum Displaying the signal waveform Measuring the Total harmonic distortion (THD) Measuring the sound pressure level (SPL, dB Drag, IdBL, ESPL, AMT, etc) Linear, logarithmic and octave view of spectrum Measuring the amplitude and frequency of the peak values of the spectrum Measuring average level of sound pressure in time (Bassrace, Bass Boxing, AMT SPL-Show, etc) Measuring the average in time and whole spectrum sound pressure level (SQL) Supports the wired and wireless Spl-Lab devices
DSI
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.
- Bluetooth 4.0 compatible
- 6 customizable presets
- 10-band parametric EQ per channel
- Phase correction
- Crossover adjustments
- Time alignment
- Input summing and linking
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The DSI-2 app is designed for use with the DD Audio DSI-2 digital signal processor, this app gives you the tools needed to fine tune virtually every aspect of you car audio system. Whether you’re a professional installer or an obsessive audiophile this app allows you to realize the true potential of your audio equipment with a straightforward layout and logical controls. Features: - Bluetooth 4.0 compatible - 6 customizable presets - 10 bands of parametric equalization per channel - Phase correction - Crossover type, frequency, and slope adjustments - Independent input and output level controls - Time alignment - Input summing and linking
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 19, 2026 respectively.
| Parameter | Measuring Center | DSI |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 3.8 (8 ratings) — better |
| Positive reviews | 18.5% of reviews | 57.1% of reviews — better |
| Number of ratings | 2 | 8 — better |
| Update frequency | Every 2 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 8.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Kirill Berezin | DD Audio |
Customer experience
Measuring Center
DSI
In-app purchases
Measuring Center
No in-app purchases
DSI
No in-app purchases









