Zetsu
Changelog
Zetsu updates itself: the app checks for new versions automatically, and you can check manually with Check for Updates in the right-click menu. New here? Download the latest version.
1.1.4
- Fixed: The menu bar panel now closes when you click anywhere outside it, even after choosing a device in the Input or Output picker. Previously, after picking a device, the panel stayed open until you clicked the menu bar icon again.
- Website: Added a Japanese version of the before-and-after demo recording on zetsu.app.
1.1.3
- Changed: The before-and-after demo recordings on zetsu.app were re-recorded by a native English speaker, making it easier to judge Zetsu's noise removal by ear. This release contains no changes to app behavior.
1.1.2
- Fixed: While Zetsu is waiting for your device to reconnect, the device picker now shows that device as "(waiting for reconnect)" instead of appearing to have another device selected.
- Fixed: Choosing another device from the picker while waiting now always resumes immediately. Previously the device you wanted could already look selected, so picking it did nothing.
1.1.1
- Fixed: Automatic recovery is now much more reliable with real-world unplugging and reconnecting. Devices like AirPods come back in several steps, and an unlucky timing could previously leave Zetsu stopped until you clicked Retry. Zetsu now keeps watching and re-checking until your device is actually usable, then resumes on its own.
- Fixed: Recovery no longer gives up permanently after repeated start failures or quick sample-rate flips (for example a Bluetooth headset settling into its call profile). If recovery takes longer, Zetsu keeps retrying quietly in the background.
- Changed: Automatic recovery restarts only the device you selected — Zetsu never switches your microphone or speaker to a different device on its own. Choosing another device from the menu resumes immediately, and Retry re-checks your device right away.
1.1.0
- New: Zetsu now converts physical-device sample rates automatically, so 44.1 kHz and 24 kHz audio devices work without changing them to 48,000 Hz in Audio MIDI Setup.
- Fixed: When an active device changes sample rate — for example, when a Bluetooth headset switches profiles — Zetsu now rebuilds the audio path automatically instead of stopping immediately.
1.0.14
- New: Send and receive now resume automatically when your selected device is reconnected. Unplug your headset mid-meeting, plug it back in, and audio flows again within seconds — no need to open the menu or click Retry.
- Fixed: Unplugging a device no longer overwrites your saved input and output selection. Zetsu falls back to another device only temporarily and returns to your preferred device as soon as it is available again.
- Fixed: Device lists and selections now refresh reliably every time the menu is opened.
1.0.13
- New: Auto-Recovery now repairs the listening path at any time — not only after sleep. When meeting audio stops flowing through Zetsu Speaker and the other side's noise comes back raw (for example after they unmute), Zetsu reconnects it automatically within about 10 seconds, no clicks needed.
- Changed: The right-click menu item is now simply "Auto-Recovery" (was "Auto-Recovery After Sleep"), since it protects more than just sleep.
1.0.12
- New: After waking from sleep, Zetsu now detects when meeting audio stops reaching Zetsu Speaker (the other side's noise suddenly comes back) and reconnects it — automatically when your mic is not in use, or with a one-click Fix Now button in the menu while you are live on a call. Auto-fix can be turned off from the right-click menu (Auto-Fix Receive Audio After Sleep).
- New: The "Remove others' noise" section now shows whether an app is actively playing to Zetsu Speaker, with recovery guidance when audio does not reconnect after sleep.
1.0.11
- Maintenance release — no changes to the app itself.
- Website: The changelog page (this page) now updates automatically with each release.
1.0.10
- Changed: Refreshing the device lists moved from Diagnostics to a refresh button right next to the Input and Output pickers — press either one to re-scan both lists.
- Website: Added this changelog page.
1.0.9
- Maintenance release — packaging and website updates. No changes to the app itself.
1.0.8
- Maintenance release — website and distribution updates. No changes to the app itself.
1.0.7
- Fixed: The right-click menu no longer closes by itself when you move over the Virtual Devices (Driver) items.
1.0.6
- New: If the audio driver isn't installed yet, the menu now shows a single clear “Install Driver” step instead of the full controls.
- Fixed: Right-clicking the menu bar icon now works reliably on the latest macOS versions.
- Fixed: A false “installed driver is outdated” warning could appear right after installing the driver.
1.0.5
- New: 7-day free trial — try full noise cancellation before buying.
- Changed: Without a license, audio now passes through unchanged instead of stopping, so your meetings never go silent.
- Changed: New pricing — $5/month, $50/year, or $100 once (lifetime).
1.0.4
- Changed: The CPU readout in Diagnostics now explains that it measures Zetsu's own usage on a whole-machine scale (Activity Monitor uses a per-core scale, so its number looks larger for the same load).
- Website: zetsu.app is now available in 10 languages.
1.0.3
- New: A single Mode picker — Echo (lighter on battery) or Performance (strongest suppression) — replaces the per-direction engine choices.
- Changed: CPU usage moved into the Diagnostics section, and Diagnostics is easier to open and read.
- Changed: The installer (DMG) window got a proper background with a drag-to-Applications layout.
1.0.2
- New: Simpler menu bar controls — left-click for everyday toggles and devices, right-click for management (license, driver, updates).
- New: Launch at Login.
- New: CPU usage display.
1.0.1
- Changed: The app's interface is now fully in English.
- Changed: Downloads switched from ZIP to DMG.
1.0.0
- First public release: Two-way, on-device noise cancellation for macOS — clean what you send and what you hear, right from the menu bar.
- Licensing: One key activates up to 3 Macs, with a 14-day offline grace period.