A/B Audio vs SonoBus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A/B Audio
This audio tool allows musicians and engineers to compare two audio mixes side-by-side to identify subtle differences and achieve the perfect sound. Easily load tracks from various cloud services and conduct blind tests to make informed decisions about your mixes.
- Side-by-side audio mix comparison
- Live switching between mixes
- Load tracks from Music library
- Support for iCloud Drive, Dropbox, Google Drive
- Blind test option
- Easy file sharing
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Calling all Musicians, Mixing professionals and Mastering engineers, this app is for you! A/B audio comparison is the go-to audio tool to achieve the perfect mix or master and is now available on your favorite iOS device. A/B Audio is perfect for switching live between two mixes or masters so you can instantly hear the changes you made. Loudness match your files with the tap of a button (loudness matching is based on integrated LUFS) for a fair comparison. *Does this mix need more bass? *Compression ratio needs tweaking? *Too much reverb? *Too less reverb? *More limiting? *More chorus? *More of everything :)??? Use A/B Audio to blast your mixes anywhere and compare your mixes in as many places and situations as you can to achieve the best sounding mix/master for your track. Load tracks via the Music library (excluding DRM protected content), Drag and Drop on iPad or use your favorite file sharing app. After deciding which mix or master is the absolute best easily share the file from within the app and let your friends or fellow band members know which version you prefer. We even added a ' Blind test' option to let your ears decide which mix is the best one!
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 price: SonoBus at Free against A/B Audio's $3.99. SonoBus also leads on rating (4.5 vs 4.3) and ratings volume (41 vs 7). A/B Audio's advantage is review sentiment (87% vs 68%). On update cadence, ads, in-app purchases and device support 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
SonoBus is free to download; A/B Audio costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SonoBus holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: SonoBus has 41 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 87% of A/B Audio's written reviews are positive against 68% of SonoBus's, so the app with the better star average is not the one people write more warmly about.
A/B Audio ships an update every 2 months, SonoBus every 6 weeks. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.
| Parameter | A/B Audio | SonoBus |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.3 (7 ratings) | 4.5 (41 ratings) — better |
| Positive reviews | 86.7% of reviews — better | 67.9% of reviews |
| Number of ratings | 7 | 41 — better |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 4 MB | 51 MB |
| Age rating | 4+ | 9+ |
| Developer | Andreas Kaspers | Sonosaurus LLC |
Customer experience
A/B Audio
SonoBus
In-app purchases
A/B Audio
No in-app purchases
SonoBus
No in-app purchases









