# LM AUDIO vs Open Sound Meter

The clearest difference is review sentiment: Open Sound Meter at 100% against LM AUDIO's 0%. LM AUDIO's advantage is price (Free vs $69.99) and iOS requirement (7.0 vs 12.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

LM AUDIO is free to download; Open Sound Meter costs $69.99 up front. Neither carries in-app purchases, so what you see is what you pay.

LM AUDIO ships an update every 3 months, Open Sound Meter every 2 months. The most recent releases landed on June 4, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | LM AUDIO | Open Sound Meter |
| --- | --- | --- |
| Price | **Free** | $69.99 |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/open-sound-meter/id1552933259/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Size | 3 MB | 45 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [PT. Kramat Motor](https://appshunter.io/developer/1280833868) | [Pavel Smokotnin](https://appshunter.io/developer/1552933261) |

## What reviewers say

### LM AUDIO

[App page](https://appshunter.io/ios/app/lm-audio/id1118657152)

This application allows users to control various audio settings for car amplifiers with integrated DSP. Adjust EQ, bass, 3D sound, time alignment, and filters. Save and load sound settings directly from your phone or the amplifier.

**Highlights:** DSP control, EQ adjustment, Bass and 3D sound settings, Time alignment, Filter control, Save sound settings to phone, Save sound settings to amplifier

**Features:** macOS Compatibility

**In-app purchases:** none


### Open Sound Meter

[App page](https://appshunter.io/ios/app/open-sound-meter/id1552933259)

This application allows real-time tuning and control of audio systems. It provides comprehensive measurement and analysis tools for various audio parameters, with options to store, adjust, and average results. Calibration files and direct console connections enhance measurement accuracy.

**Highlights:** Real-time audio system tuning, Spectrum, SPL, Magnitude, Phase analysis, Store, adjust, and average measurements, Apply calibration files for microphones, Direct connection to mixing consoles, Project saving to device or iCloud

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

**In-app purchases:** none


## Frequently asked questions

### Is LM AUDIO free?

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

### Is Open Sound Meter free?

Open Sound Meter costs $69.99, with no in-app purchases.

### Do LM AUDIO or Open Sound Meter have ads?

Neither LM AUDIO nor Open Sound Meter shows ads.

### Which is updated more often, LM AUDIO or Open Sound Meter?

LM AUDIO ships an update every 3 months, and Open Sound Meter every 2 months. Most recently, LM AUDIO was updated on June 4, 2026 and Open Sound Meter on September 11, 2026.

---

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