RF IMD Test vs LiveSpec
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RF IMD Test
This free application helps audio technicians find compatible wireless frequencies quickly to avoid interference. It provides educational insights into RF intermodulation.
- Finds compatible wireless frequencies
- Prevents frequency interference
- Provides RF intermodulation feedback
- Free to use
- Educational for audio techs
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This simple and 100% free RF-coordination app finds you compatible wireless frequencies fast that won't interfere with each other. It also offers clear, informative feedback for audio techs looking to learn more about how RF intermodulation works under the hood.
LiveSpec
This audio analysis tool allows users to measure and optimize sound in any environment. It provides real-time spectrum analysis, sound level monitoring, and tools for system tuning and live mixing. The app supports various audio interfaces and offers iCloud syncing for configurations.
- Real-time spectrum analyzer
- Spectrograph for sound over time
- SPL monitor with A/C weighting
- Dose meter for safe listening time
- Live Mix plugin host
- Transfer function with phase
- Impulse response and delay finding
- Parametric and Graphic EQ
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LiveSpec is the audio analyzer you can carry into any room. Point it at a stage, a sanctuary, or a stream feed and see exactly what is happening, then fix it with confidence. Whether you tune arenas for a living or run the board at church on Sunday, the tools are the same and they are all included. RUN THE SHOW Real time analyzer with sharp, smooth traces and a 3D view that shows how the spectrum moves. Spectrograph that unfolds your sound over time, so feedback and rumble have nowhere to hide. SPL monitor with A and C weighting, LAeq and LCeq, a stoplight for your limit, and logging you can export to prove how loud the night really was. Dose meter with NIOSH and OSHA standards, so you know how much safe listening time is left. Live Mix plugin host that runs Audio Unit plugins on your stream or broadcast feed, with input and output meters and LUFS targets. Mix Balance targets that give your whole team one standard to mix to, every night. Auto EQ with Smart Listen that hears the mix and suggests the correction, then lets you shape it. TUNE THE SYSTEM Transfer function with phase and coherence, so you can trust what the trace tells you. Impulse response, delay finding, and speaker alignment, with multiple microphones averaged into one picture. Decay, waterfall, RT60, and harmonic distortion views when you need to look deeper. Parametric and Graphic EQ with profiles that match the grid of popular consoles and processors, so what you design is what you can actually dial in. Signal generator with popular noise types, sweeps, and a playlist for your reference tracks. Setup wizard that finds your interface, checks your channels, and has you measuring in about a minute. MADE FOR THE JOB Works with the built in microphone or any USB audio interface, from a single mic to a full multichannel rig. Calibration files for your measurement microphones. Measurement configurations, targets, captures, and settings sync between your iPhone, iPad, and Mac through iCloud. Dark themes designed for a dim front of house position, with every panel readable at arm's length. ONE PLAN, EVERYTHING INCLUDED Start with a 14 day free trial. All Access is $17.99 per month or $149.99 per year and covers every feature on every device signed into your Apple account. After the trial the subscription renews at the plan price unless you cancel at least 24 hours before the trial ends. No add ons, no tiers, nothing held back. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple account, and you can manage or cancel in your account settings at any time. Privacy policy: https://linearphase.com/privacy Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: RF IMD Test at none against LiveSpec's 2. RF IMD Test also leads on iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and ads 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. LiveSpec sells 2 in-app purchases, starting at $17.99 per month. RF IMD Test asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for RF IMD Test against 5.0 for LiveSpec. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
| Parameter | RF IMD Test | LiveSpec |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Number of ratings | 1 | 2 — better |
| Update frequency | — | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 5 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | JS Audio LLC | Linear Phase LLC |
In-app purchases
RF IMD Test
No in-app purchases
LiveSpec
- All Access Monthly14 Days trial$17.991 Month
- All Access Annual14 Days trial$149.991 Year









