# RTA vs B

The clearest difference is price: B at Free against RTA's $4.99. B also leads on rating (5.0 vs 3.9) and in-app purchases (none vs 2). RTA's advantage is review sentiment (61% vs 43%) and ratings volume (26 vs 2). On update cadence, ads, device support and iOS requirement there is nothing between them.

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

B holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: RTA has 26 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 61% of RTA's written reviews are positive against 43% of B's, so the app with the better star average is not the one people write more warmly about.

RTA ships an update every 3 months, B every 4 months. The most recent releases landed on October 17, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | RTA | B |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [3.9 (26 ratings)](https://appshunter.io/ios/app/rta/id298839433/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/b-con-go/id6475862363/reviews)** |
| Number of ratings | **26** | 2 |
| Positive reviews | **60.7% of reviews** | 42.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#128** | — |
| Size | 29 MB | 249 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Andrew Smith](https://appshunter.io/developer/291822462) | [Elettromedia S.p.A.](https://appshunter.io/developer/952731234) |

## What reviewers say

### RTA

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

**Currently charting:** #128 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


### B

[App page](https://appshunter.io/ios/app/b-con-go/id6475862363)

Control Audison Forza DSP amps and Virtuoso DSP with this app. Stream music wirelessly, adjust volume, save DSP presets, and switch input sources. Monitor amp status and temperature through an intuitive interface.

**Highlights:** Wireless audio streaming, Master volume control, DSP memory presets, Input source selection, Fader/balance control, DSP amp status monitoring

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

**In-app purchases:** none


## Frequently asked questions

### Is RTA free?

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

### Is B free?

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

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

B is rated higher. RTA averages 3.9 out of 5 from 26 ratings, while B averages 5.0 from 2 ratings.

### Do RTA or B have ads?

Neither RTA nor B shows ads.

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

RTA ships an update every 3 months, and B every 4 months. Most recently, RTA was updated on October 17, 2026 and B on October 2, 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.*