KRK Audio Tools vs SonoBus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KRK Audio Tools
This application offers a suite of professional tools designed to optimize your studio monitor setup. It includes features for real-time frequency analysis, level calibration, EQ recommendations, and precise monitor alignment for an enhanced listening experience.
- Spectrum RTA for real-time frequency analysis
- Level Meter for monitor calibration
- EQ Recommendation for room optimization
- Monitor Align for precise angle adjustment
- Delay tool for multi-monitor time alignment
- Polarity tool for wiring verification
- Signal generator (sine, white, pink noise)
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KRK Audio Tools App is a suite of professional tools ideal for monitor tuning that can help you to get the best experience with your KRK monitors. It includes the following tools: - "Spectrum RTA" tool is used to measure and display the frequency spectrum of the input audio signal in realtime. - "Level Meter" tool is used for monitor level calibration. - "EQ Recommendation" tool is used to help determine which EQ presets may work best in your room. - "Monitor Align" tool is used to perfectly align the angle of your studio monitors. - "Delay" tool is used to time-align your monitors in a multi monitor system. - "Polarity" tool is used for verifying that monitors are wired correctly. Furthermore, it includes a signal generator that can generate sine waves, white noise and pink noise. The inline help contains instructions to use the tools correctly.
SonoBus
Stream high-quality, low-latency peer-to-peer audio with multiple users over the internet or a local network. Connect for music creation, remote sessions, or podcasts, with options for recording and playback. Supports standalone use or as a plugin with compatible hosts.
- Low-latency peer-to-peer audio streaming
- Connect multiple users
- Record and playback audio
- Standalone app and plugin support
- Adjustable audio quality
- Public and private groups
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SonoBus is an easy to use application for streaming high-quality, low-latency peer-to-peer audio between devices over the internet or a local network. Simply choose a unique group name (with optional password), and instantly connect multiple people together to make music, remote sessions, podcasts, etc. Easily record the audio from everyone, as well as playback any audio content to the whole group. Public groups are also available, for those interested in connecting to new people. Connects multiple users together across the internet to send and receive audio among all in a group, with fine-grained control over latency, quality and overall mix. Use it on your desktop or in your DAW, or on your mobile device. You can also use it locally on your own LAN to send audio among your devices with low latency. Works as a standalone application. as an AudioUnit v3 plugin with a compatible host app, or via Interapp-Audio. You can connect to others using SonoBus on any of the other platforms it runs on. Easy to setup and use, yet still providing all the details that audio nerds want to see. Audio quality can be instantly adjusted from full uncompressed PCM down through various compressed bitrates using the low-latency Opus codec. SonoBus does NOT use any echo cancellation, or automatic noise reduction in order to maintain the highest audio quality. As a result, if you have a live microphone signal you will need to also use headphones to prevent echos and/or feedback. SonoBus does NOT currently use any encryption for the data communication, so while it is very unlikely that it will be intercepted, please keep that in mind. All audio is sent directly between users peer-to-peer, the connection server is only used so that the users in a group can find each other. For best results, and to achieve the lowest latencies, connect your device with wired ethernet to your router. Little known fact, you can use USB ethernet interfaces with your iOS device using the proper adapter (USB camera connection kit, or natively with USB-C apple devices). It *will* work using WiFi, but the added network jitter and packet loss will require you to use a bigger safety buffer to maintain a quality audio signal, which results in higher latencies, which may or may not be acceptable for your use case.
Screenshots
Verdict
The clearest difference is rating: SonoBus at 4.5 against KRK Audio Tools's 4.1. SonoBus also leads on review sentiment (68% vs 54%). KRK Audio Tools's advantage is iOS requirement (9.3 vs 15.0). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SonoBus holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 40 and 41 respectively. Written reviews point the same way: 54% of KRK Audio Tools's written reviews are positive against 68% of SonoBus's.
| Parameter | KRK Audio Tools | SonoBus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (40 ratings) | 4.5 (41 ratings) — better |
| Positive reviews | 54.2% of reviews | 67.9% of reviews — better |
| Number of ratings | 40 | 41 — better |
| Update frequency | — | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 10 MB | 51 MB |
| Age rating | 4+ | 9+ |
| Developer | KRK Systems, Inc. | Sonosaurus LLC |
Customer experience
KRK Audio Tools
SonoBus
In-app purchases
KRK Audio Tools
No in-app purchases
SonoBus
No in-app purchases







