LM AUDIO vs Open Sound Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LM AUDIO
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.
- DSP control
- EQ adjustment
- Bass and 3D sound settings
- Time alignment
- Filter control
- Save sound settings to phone
- Save sound settings to amplifier
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After connecting App to Car Amplifier with Integrated DSP, EQ, BASS, 3D SOUND,TIME ALIGNMENT, PHASE, MUTE, FILTER , SAVE SOUND SETTING TO PHONE, SAVE SOUND SETTING TO AMPLIFIER, LOAD SOUND SETTING FROM PHONE, RCA OUTPUT etc could be controlled through this App. How to use: 1.Install App and turn on power of car 2. Turn on Bluetooth on your iPhone 3,Open App and wait for around 5 seconds, then click “Connect” icon in left corner of bottom. Amplifier will be connected to App automatically. 4.DIY you preferred sound and then click “Save to AMP” icon to save. Or click “ Save to Phone” to save. Note: 1.Do not exit app during saving and do not turn off power supply, program may be shut down caused by this.
Open Sound Meter
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.
- 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
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Open Sound Meter is an application for tuning and controlling audio systems in real-time. Allows to measure and analyze: - Spectrum - SPL (RMS, Leq) - Magnitude - Phase - Group delay - Phase delay - Coherence - Impulse - Step - Spectrogram - Impedance - Nyquist plot - Crest factor You can store any result. Stored measurement can be adjusted by gain, delay and polarity, adjusted with filters, equalization. Math function gives you a possibility to average your measurements, virtually join them and predict how they will sound together. For better results, you can apply calibration files for your microphones. For the measurement, you can use any iOS compatible audio interface or connect to your mixing console. Save the project on the device or in iCloud. Direct connection works with Behringer X32, Midas M32, Allen&Heath Qu, DiGiCo S21/S31/SD12/UB-MADI, Yamaha TF and other consoles that have audio over USB. For Yamaha CL/QL you can use Dante AVIO adapter.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | LM AUDIO | Open Sound Meter |
|---|---|---|
| Price | Free — better | $69.99 |
| Rating | — | 5.0 (5 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 5 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 3 MB | 45 MB |
| Age rating | 4+ | +4 |
| Developer | PT. Kramat Motor | Pavel Smokotnin |
Customer experience
LM AUDIO
Open Sound Meter
In-app purchases
LM AUDIO
No in-app purchases
Open Sound Meter
No in-app purchases
Questions
Is LM AUDIO free?
Is Open Sound Meter free?
Do LM AUDIO or Open Sound Meter have ads?
Which is updated more often, LM AUDIO or Open Sound Meter?
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