# RTA vs AUDIIO

The clearest difference is review sentiment: RTA at 61% against AUDIIO's 0%. RTA also leads on ads (none vs shown) and chart position (#84 vs unranked). AUDIIO's advantage is price (Free vs $4.99) and rating (4.3 vs 4.0). On update cadence, in-app purchases, monetization model and device support there is nothing between them.

AUDIIO is free to download; RTA costs $4.99 up front. RTA sells 2 one-off in-app purchases and AUDIIO sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

AUDIIO holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 27 and 98 respectively. Written reviews complicate that: 61% of RTA's written reviews are positive against 0% of AUDIIO's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | RTA | AUDIIO |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.0 (27 ratings)](https://appshunter.io/ios/app/rta/id298839433/reviews) | **[4.3 (98 ratings)](https://appshunter.io/ios/app/audiio-rta-analyzer/id1466746908/reviews)** |
| Number of ratings | 27 | **98** |
| Positive reviews | **61.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#84** | — |
| Size | 30 MB | 14 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Smith](https://appshunter.io/developer/291822462) | [BetaMatters](https://appshunter.io/developer/1437603523) |

## What reviewers say

### RTA

[App page](https://appshunter.io/ios/app/rta/id298839433)

**Currently charting:** #84 Top Paid · Music (US App Store)

Analyze audio frequencies, test speakers, and tune rooms with this professional-grade acoustical analysis tool. It offers octave and 1/3 octave modes, peak hold, and averaging, with automatic microphone compensation for accurate results.

**Highlights:** Real-time acoustical analysis, Octave and 1/3 Octave modes, Peak Hold and Average modes, Automatic microphone compensation, Save, recall, and export graphs, Interactive touch GUI, Noise curve overlays

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| STC -- Transmission Loss | $9.99 | one-time |
| Reference Curve Files | $9.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Good for quick analysis
- 👍 Accurate for price
- 👍 Useful for tuning
- 👍 Professional tool

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Freezes often
- 🐛 Incompatible with iOS updates
- 🐛 Screen display issues
- 🐛 Battery drain

**Reported bugs**

- App crashes after iOS updates (iOS 13, 15, 16, 17, 18)
- App freezes or crashes on startup
- App only displays half the screen
- App does not save analysis readings to photo roll
- App stops working on older iPads after updates

**Requested features**

- Add German language support
- Add NC and NR curves
- Make background mode optional
- Improve compatibility with newer iOS versions
- Add option to overlay readings


### 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 |


## Frequently asked questions

### Is RTA free?

RTA costs $4.99, and also offers in-app purchases.

### Is AUDIIO free?

AUDIIO is free to download, with in-app purchases available.

### Which has better reviews, RTA or AUDIIO?

AUDIIO is rated higher. RTA averages 4.0 out of 5 from 27 ratings, while AUDIIO averages 4.3 from 98 ratings.

### Do RTA or AUDIIO have ads?

AUDIIO shows ads; RTA does not.

### Which is updated more often, RTA or AUDIIO?

RTA ships an update every 3 months, and AUDIIO every 3 months. Most recently, RTA was updated on October 31, 2026 and AUDIIO on October 29, 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.*