Confidential contracts, foreign-language evidence and recorded interviews can't be pasted into a public translation site, yet they still have to be understood accurately in your own language. TransCastAI transcribes and translates live speech, audio and video recordings, and documents entirely on your Mac, so privileged material is worked on where it already sits and is never uploaded to anyone's cloud.
A sample of the everyday capabilities that matter for Legal & Regulated Business.
On-device processing means privileged and confidential material is never uploaded, shared or sent to a third-party server. It is translated on the same Mac it already lives on.
Contracts, filings and PDFs, plus recorded depositions, interviews and calls, all transcribed and translated in both directions, not just typed text.
Models tuned on specialist legal and regulatory vocabulary, so clauses, defined terms and terms of art come through precisely rather than as loose paraphrase.
No connection required. Run it in a locked room, a network-restricted site or on a flight, and the whole workflow still runs locally.
Today, every transcription and translation happens on-device on macOS, so privileged material never leaves the machine and data residency and confidentiality are properties of the architecture rather than a policy you have to take on trust. TransCastAI is built to ISO 27001 and NIST CSF controls, and private-server, cloud and fully air-gapped deployments are on the roadmap for teams that need central management or a sealed network. Windows support is in development.
Translation models trained on legal and regulatory language across many practice areas, so defined terms, statutory references and terms of art are handled with care, both English to foreign and foreign to English.
Feed in an audio or video file, such as a recorded deposition, client interview or foreign-language broadcast, and get a time-aligned transcript and translation you can read, search and quote.
The full transcription-and-translation pipeline runs locally on the Mac, so it works in secure, offline or network-restricted environments where cloud tools are simply not permitted.
It doesn't go anywhere. On macOS today, transcription and translation run entirely on the device, files are not uploaded, and no connection is required. The material stays on the same machine your team already controls, which is exactly what makes it usable for privileged and confidential work.
Our models are trained on specialist legal and regulatory vocabulary rather than general web text, so defined terms, clauses and terms of art come through precisely in both directions. English to and from Farsi and Arabic are supported today, with Chinese, Russian and Ukrainian in training. As with any translation, we position the output as a fast, accurate working draft for a qualified reviewer, not a replacement for certified legal translation where that is required.
Today it is a macOS app that installs per device with no server to stand up, which is the simplest possible footprint for a security review because nothing leaves the machine. It is built to ISO 27001 and NIST CSF controls, and private-server, cloud and fully air-gapped deployments are on the roadmap for teams that need central management or a sealed network. Windows is in development. Talk to us about a trial and procurement and we will walk your security team through the architecture.
Start a free trial on a single Mac and see privileged material transcribed and translated without anything leaving the device, then talk to us about a wider rollout, terminology tuning and the private-server and air-gapped options on our roadmap.
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