RTA vs B
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RTA
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.
- 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
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A Real Time Analyzer for the iPhone, iPad and iPod Touch. Test your speakers, tune your room, do acoustical analysis work or just have a better understanding of audio frequencies. RTA is a professional-grade acoustical analysis tool. All filters meet or exceed ANSI and IEC Class 1 specifications. Includes Octave and 1/3 Octave modes, with selectable decay times, as well as Peak Hold and true linear Average mode. *** iOS Microphones We have analyzied every iOS device, including all of the iPads, all iPhones, and iPod touches, and have created microphone compensation files that are applied automatically. You can trust the results you are getting, often within just a few dB of a far more expensive analyzer. Calibration is updated regularly, automatically, from our cloud-based calibration database. Upgrade to our iTestMic or iAudioInterface2 to bring your system up to full professional specs. *** Save and Recall Graphs You can save and recall graphs, marked with the GPS location, date & time, and your comment, as well as store the image to your photo roll. Export the data as an XLS formatted file to your computer for inclusion in reports or further analysis. *** Max and Min Bars You can also turn on resettable Max/Min bars (see image #4) to capture peaks. Double-tap to reset the bars. *** Specifications and Devices The internal iPhone mic has a noise floor near 30 dB, and if your are running iOS 6, clips around 120 dB. *** Touch GUI Fully interactive touch GUI features includes scroll up/down, pinch to zoom or compress the vertical dB scale, or swipe horizontally to get a cursor that reads out the exact dB level and frequency across the screen. To make the cursor disappear, swipe it off the graph to the left. The landscape-mode display flips 180 degrees so that you can face the internal mic in either direction. *** Overlay Curves Also included are optional noise curve overlays, in NCB, RC, PNC, NC, X-Curve and NR mode. See picture #2 for an example. Use this feature to get a quick reading on the noise levels in a room. Also includes the cinema large-room X-curve overlay. *** Calibration RTA can be fully calibrated, whether you are using it with the internal iOS microphone, or one of our professional test & measurement mic solutions. And, if you are using iTestMic, the mic calibration is transmitted directly to the app, so you are always calibrated. *** RTA or FFT? If you are wondering if you should download this app or our FFT app, check out our website, we have a page devoted to this topic. See our other acoustics and audio apps, including AudioTools.
B
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.
- Wireless audio streaming
- Master volume control
- DSP memory presets
- Input source selection
- Fader/balance control
- DSP amp status monitoring
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Discover a new way of control with B-CON Go app, designed to seamlessly interface with Audison Forza DSP amp and Virtuoso DSP. With its cutting-edge Bluetooth connectivity to the Audison B-CON, this app empowers you to delve into a realm of DSP customization like never before. Seamlessly integrate your smartphone with Audison DSP and embark on a journey of control that is as intuitive as it is transformative. Streamlined Streaming Playback: immerse yourself in a world of wireless audio streaming through B-CON go’s unparalleled connectivity to your favorite App to stream music. Effortlessly pair your device to the Audison B-CON, granting you the freedom to enjoy your favorite tracks with stunning clarity and depth. Masterful Volume Control: take charge of your auditory environment by adjusting both main and subwoofer volumes with the fidelity that only the “Absolute Volume” B-CON feature can offer. Tailor the audio dynamics to your mood, setting, or musical preference with just a simple swipe. DSP Memory Presets: B-CON go revolutionizes convenience by allowing you to store and recall your preferred Digital Signal Processing (DSP) settings at your leisure. Whether it is custom tuning for a particular genre or a uniquely calibrated audio profile, access your presets instantly and elevate your listening sessions to a new echelon. Input Source Selection: seamlessly switch between input sources, effortlessly toggling between various audio devices. Whether it is your smartphone, OEM head-unit, or any other compatible source, B-CON go ensures uninterrupted access to your desired sound source. Comprehensive Functionality: B-CON go presents a comprehensive suite of functions at your disposal, ranging from fader/balance and Forza DSP amps status monitoring DSP temperature and voltage. Harness these features to sculpt your audio landscape with precision, crafting an experience that resonates with your unique tastes. Intuitive User Interface: Designed with user-friendliness in mind, B-CON go’s interface is both elegant and user-intuitive. Navigating through the app’s functionalities is a seamless experience, ensuring that your focus remains firmly on the music.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | RTA | B |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 3.9 (26 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 60.7% of reviews — better | 42.9% of reviews |
| Number of ratings | 26 — better | 2 |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #104 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 29 MB | 249 MB |
| Age rating | 4+ | 17+ |
| Developer | Andrew Smith | Elettromedia S.p.A. |
Customer experience
RTA
B
Bugs and requests
RTA
Reported bugs
18 issues- 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
Show 13 moreShow fewer
- Accessory found/removed loop with iTestMic 2
- App continues to run in background, draining battery
- Calibration not supported for specific iPad models
- App not installing after purchase/update
- App not opening on iPhone 4 after update
- dB/input level is useless after update
- Screen not expanding after updates
- App not compatible with iOS 7
- App crashes when saving screen
- App not working with iMM-6 microphone
- App overcompensates for low frequencies
- App crashes on 3G S after update
- Low frequency response cut due to voice recognition
Requested features
8 requests- Add German language support
- Add NC and NR curves
- Make background mode optional
- Improve compatibility with newer iOS versions
- Add option to overlay readings
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- Add zoom functionality for frequencies
- Improve calibration for external mics
- Add pink noise output
B
Not enough reviews yet to summarise bugs or requests.
In-app purchases
RTA
- STC -- Transmission Loss$9.99
- Reference Curve Files$9.99
B
No in-app purchases








