Comparison

RTA Audio vs Feedback Trainer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RTA Audio

Analyze audio in real-time with detailed frequency spectrum and waveform visualizations. Record and export your audio analysis results, including spectrograms and frequency tables, for sharing or archiving.

Highlights
  • Real-time audio analysis (FFT)
  • Recording and offline processing
  • Spectrogram and waveform visualization
  • Exportable analysis reports (PDF)
  • Adjustable resolution and frequency scale
  • Peak and RMS metering
Features
Read full description

RTA Audio Realtime analyzer with recording and Visualizer module with export. ••• Realtime analyzer ••• Realtime analyzer gives you the ability to analyze realtime audio input (built-in microphone or external audio accessory inputs) using Fast Fourier Transform with selected window function. You can also record the input for future offline processing or export. ••• Visualizer ••• This module presents you the results of offline audio analysis. Selecting previously captured recording gives the graph view, spectrogram and waveform of the audio data. Simple controls gives you the ability to play, loop, seek and change rate of the recording synchronized with analysis data presentation. Export function allows you to share or archive your analysis. Resulting PDF document contains basic recording information, spectrogram, peak & RMS graph and frequency table data with maximum peaks (with the time of the occurrence in recording) ••• Features ••• Resolution: 1/2 - 1/96 Octave Logarithmic frequency scale Fixed frequency range (20 - 20kHz) Tone scale view C₀- H₈ (A₄ = 440Hz) Peak hold graph Peak average graph RMS average graph Pointer (watch) function Peak and RMS input meter ••• Audio input specification ••• Audio session mode - measurement Input gain control Sample rate: 48000 Hz Bit depth: Float32 Channel: 1(mono) Frequency range: 20Hz - 20kHz Dynamic range: -100dB - 0dB ••• FFT (Fast Fourier Transform) specification ••• Frame size: 8192 Overlap: from 60% to 90% Smoothing Window: Bartlett-Hann, Blackman, Blackman-Harris (default), Blackman-Nuttell, Cosine, Flat Top, Gauss, Hamming, Hann, Lanczos, Nuttall, Rectangular, Triangular Hardware acceleration

About

Feedback Trainer

Features
Read full description

A frequency ear training app for PA engineers and audio professionals. The ability to quickly identify problem frequencies that cause feedback is a skill built through experience. Train your ears with this app and sharpen your instincts for the stage and studio. Features Visual learning with a 31-band graphic EQ display Two modes: Phone-Friendly (100Hz–16kHz) and Full Range for external speakers (40Hz–16kHz) Hint mode for beginners Track your accuracy and progress history Available in Japanese, English, Chinese, French, and Spanish

Screenshots

RTA Audio4 screens
Feedback Trainer4 screens

Verdict

The call

The clearest difference is in-app purchases: Feedback Trainer at none against RTA Audio's 1. Feedback Trainer also leads on update cadence (every 2 weeks vs every 28 months). RTA Audio's advantage is ads (none vs shown). On price, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. RTA Audio sells 1 one-off in-app purchase. Feedback Trainer asks for nothing beyond the download.

UpkeepUpdate frequency

RTA Audio ships an update every 28 months, Feedback Trainer every 2 weeks. The most recent releases landed on October 15, 2026 and September 28, 2026 respectively.

Scorecard3 real differences · 7 level
RTA Audio versus Feedback Trainer: the parameters behind the verdict, then further details
ParameterRTA AudioFeedback Trainer
PriceFreeFree
Rating3.6 (31 ratings) — better—
Positive reviews58.5% of reviews—
Number of ratings31 — better—
Update frequencyEvery 28 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.6
Further details — not scored
Size2 MB4 MB
Age rating4+4+
DeveloperNew Ball s.r.o.Shunsuke Takasu

In-app purchases

1 purchases

RTA Audio

One-time1
  • Upgrade to full version$14.99
None

Feedback Trainer

No in-app purchases

Questions

Is RTA Audio free?
RTA Audio is free to download, with in-app purchases available.
Is Feedback Trainer free?
Feedback Trainer is free to download, with no in-app purchases.
Do RTA Audio or Feedback Trainer have ads?
Feedback Trainer shows ads; RTA Audio does not.
Which is updated more often, RTA Audio or Feedback Trainer?
RTA Audio ships an update every 28 months, and Feedback Trainer every 2 weeks. Most recently, RTA Audio was updated on October 15, 2026 and Feedback Trainer on September 28, 2026.

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