AUDIIO vs Feedback Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AUDIIO
Visualize audio in real-time with various data graphs like RTA Bar, FFT, and Spectrogram. Offers full octave and 1/3 octave analysis with linear or logarithmic scales. Displays peak and current dB data in a sleek, functional interface.
- Real-time audio analysis
- RTA Bar / Line Graph
- FFT and Spectrogram visualization
- Full Octave and 1/3 Octave analysis
- Linear / Logarithmic scale
- Peak and current dB data
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Audiio is a real-time audio analyzer app. - Visualize audio in various data graph (RTA Bar / Line Graph, FFT, Spectrogram) - Full Octave, 1/3 Available - Linear / Logarithm scale at your disposal - Peak dB data / current dB data - Sleek UI (Functional & Elegant)
Feedback Trainer
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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
Verdict
The clearest difference is in-app purchases: Feedback Trainer at none against AUDIIO's 1. Feedback Trainer also leads on update cadence (every 2 weeks vs every 3 months). On price, ads, 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
Both are free to download. AUDIIO sells 1 one-off in-app purchase. Feedback Trainer asks for nothing beyond the download.
AUDIIO ships an update every 3 months, Feedback Trainer every 2 weeks. The most recent releases landed on September 25, 2026 and September 10, 2026 respectively.
| Parameter | AUDIIO | Feedback Trainer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (95 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 95 — better | — |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.6 |
| Further details — not scored | ||
| Size | 14 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | BetaMatters | Shunsuke Takasu |
In-app purchases
AUDIIO
- No Ads$4.99
Feedback Trainer
No in-app purchases
Questions
Is AUDIIO free?
Is Feedback Trainer free?
Do AUDIIO or Feedback Trainer have ads?
Which is updated more often, AUDIIO or Feedback Trainer?
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