Threshold Lab for macOS and Windows

Threshold Lab support.

Find first-use guidance, understand optional network features, and contact Walter Claw Software when something is unclear.

Free in U.S. stores: Threshold Lab is free to download in the U.S. for Apple-silicon Macs running macOS 12 or later and Windows 11 PCs with x64 or ARM64 processors. View Threshold Lab on the Mac App Store. View Threshold Lab on the Microsoft Store.

Using the Mac composition workflow?

The Mac composition workflow is available in the Mac App Store edition. Update the Mac app to use shared editing, reviewed revisions, component inspection, and exact local versions. These capabilities are specific to this Mac release; no Windows composition update is announced here.

System requirements

Built for Mac and Windows.

Mac requires Apple silicon and macOS 12 or later. Windows requires Windows 11 on an x64 or ARM64 processor. Stereo headphones are strongly recommended because binaural layers depend on separate left and right channels.

Session files

Your work stays readable.

Threshold Lab is designed to keep prompts, plans, descriptions, WAV exports, and optional Experience Records as understandable local files.

First voice use

Allow one model download.

Local narration may download about 90 MB from Hugging Face after you approve the first-use notice. The model is then cached locally for reuse.

Optional AI planning

Connect your AI provider.

Mac and Windows support an isolated ChatGPT OAuth connection, or an OpenAI or xAI API key you add in Settings. Session Creator, imported plans, the built-in library, local rendering, and education do not require an AI request. The included 90-minute Witness session plays immediately without a provider key. Provider use may create charges on that account.

Listening safety

Listen at a comfortable level in a safe setting. Do not use Threshold Lab while driving or operating machinery. Stop if a session produces distress, dizziness, unusual discomfort, or another adverse reaction. Threshold Lab is not a medical device or a substitute for professional care.

Contact

Tell us what is unclear.

Questions about the product, website, or availability can be sent to support@walterclawsoftware.com. Please do not send API keys, OAuth tokens, private session content, or sensitive Experience Records.