# RTA vs NA

The clearest difference is price: NA at Free against RTA's $4.99. NA also leads on rating (5.0 vs 4.0) and in-app purchases (none vs 2). RTA's advantage is ratings volume (27 vs 1) and chart position (#84 vs unranked). On ads and device support there is nothing between them.

NA is free to download; RTA costs $4.99 up front. RTA sells 2 one-off in-app purchases. NA asks for nothing beyond the download.

NA holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: RTA has 27 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | RTA | NA |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.0 (27 ratings)](https://appshunter.io/ios/app/rta/id298839433/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/na-68dsp/id6758043462/reviews)** |
| Number of ratings | **27** | 1 |
| Positive reviews | 61.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#84** | — |
| Size | 30 MB | 19 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Smith](https://appshunter.io/developer/291822462) | [彪 唐](https://appshunter.io/developer/1854272780) |

## 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


### NA

[App page](https://appshunter.io/ios/app/na-68dsp/id6758043462)

This app offers precise sound tuning for vehicle audio systems, connecting to advanced DSP hardware. It provides professional-grade tools for real-time audio adjustments, enhancing listening experiences for audiophiles and everyday users alike.

**Highlights:** Precision sound tuning, DSP hardware integration, Real-time audio adjustments, Professional-grade tools, Intuitive user interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RTA free?

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

### Is NA free?

NA is free to download, with no in-app purchases.

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

NA is rated higher. RTA averages 4.0 out of 5 from 27 ratings, while NA averages 5.0 from 1 ratings.

### Do RTA or NA have ads?

Neither RTA nor NA shows ads.

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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.*