# RTA Audio vs Feedback Trainer

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.

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

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.

## The numbers

| Metric | RTA Audio | Feedback Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (31 ratings)](https://appshunter.io/ios/app/rta-audio/id525324684/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 58.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 28 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 4 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [New Ball s.r.o.](https://appshunter.io/developer/1178970340) | [Shunsuke Takasu](https://appshunter.io/developer/6788974380) |

## What reviewers say

### RTA Audio

[App page](https://appshunter.io/ios/app/rta-audio/id525324684)

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:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to full version | $14.99 | 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 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*