Spectrum Analyzer RTA vs RCF LiveRemote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spectrum Analyzer RTA
This real-time audio analysis app provides precision measurement and visualization for sound frequencies. It's designed for musicians and recording engineers, offering tools for room and speaker tuning, and can be used with built-in or external microphones.
- Octave Band Real Time Analyzer
- FFT Plot
- Spectrograph module
- Test Tone Generator
- White/Pink Noise Generator
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***** "As a former IEEE Technical Committee Chair for Signal Processing, I find this app amazingly flexible and useful. Works very well with its proper designed-in control selections." - Roblake Spectrum Analyzer for iOS is a powerful real-time audio analysis app. Designed with musicians and recording engineers in mind, it can also be used by anyone interested in the world of sound. Ideal for room tuning or speaker tuning, the app enables portable, precision audio measurement and visualization. Feature Highlights: ● Octave Band Real Time Analyzer ● FFT Plot (Fast Fourier Transform) ● Spectrograph module ● Test Tone and White/Pink Noise Generator ● Native iPhone X graphics >>> Check out the demo videos at SpectrumAnalyzerApp.com Audio input may be acquired via the built-in microphone or an external measurement microphone. For best results we recommend using a calibrated measurement microphone connected via USB audio interface or iPhone dock connector. This allows for high precision and flat frequency response, as well as for stereo input. Audio credits: "Basement Floor" and "Enchanted Journey" by Kevin MacLeod "Evening Birdsong" and "Cuckoo" by Benboncan
RCF LiveRemote
Control active speakers and subwoofers remotely via Bluetooth. Adjust internal mixer, EQ, reverb, and more. Supports dual mode for linked audio and control.
- Bluetooth remote control
- Internal digital mixer
- 3-band EQ and dynamics
- Bluetooth audio streaming
- Internal reverb and crossover
- Output system EQ and delay
- Dual mode linking
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The RCF LiveRemote App allows full control of several active speakers and subwoofers from your smartphone, via Bluetooth, and it has been updated to include the remote control of additional speaker models. If control-only is required, up to 8 speakers can be connected. When in Dual Mode (available for ART 91x-AX Models) only two speakers can be linked for both audio and control. The following RCF products are supported: ART 910-AX/912-AX/915-AX Single and Dual mode supported SUB 15-AX / SUB 18-AX Control-only Internal features are fully accessible via LiveRemote, and they vary depending on which unit is connected. For specific feature, please refer to the Product Reference Guide. FOR ART 9-AX SPEAKERS * 6-in, 2-out internal digital mixer, with STEREO or MONO setting * on all inputs: HPF, 3-band EQ is available * on channels 1 and 2: individual 48V on/off, dynamics block * Bluetooth audio streaming: on a dedicated input channel, in stereo or mono according to the selected mode * flexible ducker section * internal reverb REVERB with individual channel sends and 3 presets * internal crossover: with 4 USER locations and several presets to match the ART 9-AX with selected RCF subwoofer models * output system section: affects both speaker and SUB out; 5-band fully parametric EQ, up to 45 meters internal delay * Dual mode links both Bluetooth audio and control between two units, a Master and a Slave * when Dual mode is desired, it must must be enabled on the active speaker, in order to be visible from the app FOR SUB AX SUBWOOFERS * stereo input and outputs, to allow both 2.1 and 1.1 configurations * internal crossover: with 4 USER locations and several presets to match the SUB with several RCF speaker models * additional factory-tuned presets can be uploaded from the app to 4 USER APP locations; a full preset catalog update can be performed via firmware update with future upgrades * output system section: affects both SUB and crossover outputs; 8-band fully parametric EQ, up to 45 meters internal delay * grouping is possible for output levels (relative level control) and MUTEs * on more than one unit, output system sections can be linked from the app, so that delay and EQ are linked together. This option is ideal for 2.2 configurations * dual mode is not available on SUB models, as they do offer control via Bluetooth but not Bluetooth audio; SUB products can be linked for paired remote control COMMON FEATURES - On the SPEAKERS page, it is possible to view all available devices and select which one shall be connected; this operation needs to be restarted (DISCONNECT > SCAN > CONNECT) if the available devices change - Speaker name can be modified only on the physical display of the product itself - within the setup PAGE, it is possible to view delay lines values in feet by tapping on the Use Imperial Units Flag - VU Meters Enable (within the setup PAGE) creates a further tab on the lower bar, and shows the VU Meters of one unit only; it is intended for debugging audio connections
Screenshots
Verdict
The clearest difference is price: RCF LiveRemote at Free against Spectrum Analyzer RTA's $19.99. RCF LiveRemote also leads on update cadence (every 6 weeks vs every 6 months). Spectrum Analyzer RTA's advantage is review sentiment (74% vs 50%) and rating (4.3 vs 4.0). On 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
RCF LiveRemote is free to download; Spectrum Analyzer RTA costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Spectrum Analyzer RTA holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: Spectrum Analyzer RTA has 67 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 74% of Spectrum Analyzer RTA's written reviews are positive against 50% of RCF LiveRemote's.
Spectrum Analyzer RTA ships an update every 6 months, RCF LiveRemote every 6 weeks. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.
| Parameter | Spectrum Analyzer RTA | RCF LiveRemote |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | 4.3 (67 ratings) — better | 4.0 (2 ratings) |
| Positive reviews | 73.7% of reviews — better | 50.0% of reviews |
| Number of ratings | 67 — better | 2 |
| Update frequency | Every 6 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 7 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | ONYX Apps | RCF spa |
Customer experience
Spectrum Analyzer RTA
RCF LiveRemote
In-app purchases
Spectrum Analyzer RTA
No in-app purchases
RCF LiveRemote
No in-app purchases
Questions
Is Spectrum Analyzer RTA free?
Is RCF LiveRemote free?
Which has better reviews, Spectrum Analyzer RTA or RCF LiveRemote?
Do Spectrum Analyzer RTA or RCF LiveRemote have ads?
Which is updated more often, Spectrum Analyzer RTA or RCF LiveRemote?
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