# AUDIIO vs Feedback Trainer

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.

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.

## The numbers

| Metric | AUDIIO | Feedback Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (95 ratings)](https://appshunter.io/ios/app/audiio-rta-analyzer/id1466746908/reviews)** | — |
| Number of ratings | **95** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 4 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BetaMatters](https://appshunter.io/developer/1437603523) | [Shunsuke Takasu](https://appshunter.io/developer/6788974380) |

## What reviewers say

### AUDIIO

[App page](https://appshunter.io/ios/app/audiio-rta-analyzer/id1466746908)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $4.99 | one-time |


### Feedback Trainer

[App page](https://appshunter.io/ios/app/feedback-trainer/id6788974378)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AUDIIO free?

AUDIIO 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 AUDIIO or Feedback Trainer have ads?

Both AUDIIO and Feedback Trainer show ads.

### Which is updated more often, AUDIIO or Feedback Trainer?

AUDIIO ships an update every 3 months, and Feedback Trainer every 2 weeks. Most recently, AUDIIO was updated on September 25, 2026 and Feedback Trainer on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*