Guide
Is Wispr Flow private?
A factual answer, taken from Wispr Flow's own published documentation rather than from us. We make a competing product, so everything here is sourced.
The short answer
Wispr Flow sends your audio to its servers to transcribe it. That is how the product works, and it is documented openly rather than hidden.
Whether that is a problem depends entirely on what you dictate. For most messages and emails it is the same exposure as using Gmail. For confidential work it is a question you have to actually answer.
What their documentation says
- Audio leaves your device on every dictation. There is no offline mode; a connection is required.
- Audio and transcripts pass through third-party LLM providers, where the typical default is short-term retention for abuse monitoring.
- Privacy Mode is off by default on standard and trial accounts. With it off, data may be used to evaluate, train and improve their models. You can turn it on in settings.
- The consumer product is not HIPAA-compatible on its own. Healthcare customers sign a BAA, which locks Privacy Mode on irreversibly and turns off cloud sync.
None of that is unusual for a cloud AI product, and publishing it plainly is more than many competitors do. The point is not that Wispr Flow is reckless — it is that the privacy answer is a configuration, and configurations have defaults, get reset, and vary by account type.
When it actually matters
It matters when you are subject to an obligation that is not satisfied by a vendor's settings page: client confidentiality, privilege, medical records, unreleased code, an NDA, or a jurisdiction with data-residency rules. In those situations the question your compliance team asks is not "is it encrypted" but "where did the audio go", and "to a third-party model provider in another country" is a real answer with real consequences.
It matters much less if you are dictating grocery lists and Slack replies. Being honest about that is more useful to you than scaring you.
The structural alternative
An on-device app removes the question rather than answering it. Voz Whisper runs a Whisper model bundled inside the app, discards the audio buffer the moment it becomes text, and has no account and no server to send anything to. It makes two network requests in total, and neither carries your voice: a once-a-day check for a new version, which sends a version number and can be switched off entirely in Settings ▸ Updates, and — only if you turn on the optional AI summaries — a one-time model download that then runs on your Mac. You can verify all of this by turning on Airplane Mode and continuing to dictate.
To be fair to Wispr Flow
They publish their retention behaviour, offer a Privacy Mode, sign BAAs, and do not bury any of it. The cloud is also why their accuracy and clean-up are as good as they are. This page is an argument about architecture, not about anyone's integrity.
Checked 18 August 2026. Sources: Wispr Flow privacy policy, security and compliance FAQ, and HIPAA documentation, as published on their own site.
Voz is an independent product and is not affiliated with, endorsed by or sponsored by any other product named on this page. Product names and trademarks belong to their respective owners, and are used here only to identify what is being compared. Prices and features are as published by each vendor and checked on 18 August 2026; they change. If something here is out of date or wrong, tell us — we would rather correct this page than defend it.