Legal
Licence terms
Last updated: 28 September 2026
Writ is free. The app and its source code are licensed by Bradley Berkman under the PolyForm Noncommercial License 1.0.0, also published in full in the repository's LICENSE file.
This page explains those terms in plain language. It adds no restrictions of its own. Where this page and the licence differ, the licence governs.
1. What you may do
You may use, copy, modify and share Writ for any noncommercial purpose. That includes personal use such as study, private entertainment, hobby projects and amateur pursuits, with no anticipated commercial application. Charities, educational institutions, public research, public safety or health and environmental protection organisations, and government institutions may use it for any purpose.
If you give anyone a copy of Writ, or of any part of it, you must include the licence terms or their URL above, and the Required Notice: line from the LICENSE file.
Nothing here limits any fair use rights you have under the law.
2. What needs a separate licence
Commercial use needs a separate licence. That includes redistributing Writ for a fee. The licence does not let you sublicense or transfer your rights to anyone else. To ask about a commercial licence, contact the address below.
3. Updates
Writ may check for and offer updates, which are free. Updates are provided at our discretion. Nothing here obliges us to produce any particular update or feature.
4. Violations
The first time you are notified in writing that you have broken these terms, your licence continues if you come into full compliance, and take practical steps to correct past violations, within 32 days. Otherwise it ends immediately. Making a written claim that Writ infringes a patent ends your patent licence for it immediately.
5. No warranty and no liability
As far as the law allows, the software comes as is, without any warranty or condition, and the licensor will not be liable to you for any damages arising out of these terms or the use or nature of the software, under any kind of legal claim.
Specifically, and without limiting the above: the Software changes which audio devices your Mac uses. We do not warrant that it will select any particular device at any particular moment, that it will work with every audio device or every version of macOS, or that its behaviour will be suitable for recording, broadcast, live performance or any other circumstance where a wrong device matters. Do not rely on it as the only safeguard in a situation where audio routing must be correct. Check your levels.
6. Consumer rights
Nothing in these terms excludes or limits any right you have as a consumer that cannot be excluded or limited under the law of your country of residence. Section 5 applies only to the extent that law permits.
7. Privacy
Writ does not retain personal data or collect analytics. Optional crash and failed-device-switch reporting is off by default and, when enabled, sends only the error kind, Writ version and macOS version. Network behavior is described in the Privacy Policy.