Both products can turn speech into text on a Mac without sending audio away for recognition. Both also offer ways to use remote AI, so the privacy answer depends on the models and formatting path selected, not the brand name. The real choice is whether you want SuprFlow's native Mac menu-bar workflow and current one-time offer, or Superwhisper's broader catalog of local and cloud speech and language models, cross-platform support, and documented enterprise options.
Superwhisper's model guide distinguishes speech recognition from the optional language model that rewrites the result. It lists local and cloud choices for both steps. SuprFlow runs WhisperKit recognition locally, uses local default cleanup, and can send transcript text to a hosted provider for advanced formatting or to a configured Ollama endpoint. Treat any custom endpoint as remote until verified.
| Decision | SuprFlow | Superwhisper |
|---|---|---|
| Local speech recognition | WhisperKit model on an Apple Silicon Mac. | Official model catalog lists several on-device speech models, including free-tier options. |
| Optional rewrite | Local default cleanup; Cloud API sends text and prompt to a user-selected provider; Ollama can be local when configured locally. | Super Mode can use local or cloud language models; cloud requests use Superwhisper's proxy according to its model guide. |
| Cloud speech option | No hosted speech-recognition path found in SuprFlow 1.0.0. | Official model catalog lists hosted speech models, which send audio through its service. |
| Platform | SuprFlow currently advertises macOS 14+ on Apple Silicon. | Superwhisper advertises Mac, Windows, and mobile platforms; check the exact feature by platform. |
| Enterprise evidence | Do not assume SuprFlow has central controls or a compliance attestation from a privacy-themed homepage. | Superwhisper publicly claims SOC 2 Type II and HIPAA support and lists a trust center. A buyer should still inspect its current report, agreement, scope, and configuration. |
| Price model | $125 once for a personal license on up to five Macs you own. | A free tier, plus Pro at $8.49 a month, $84.99 a year, or $249.99 once, per Superwhisper's plans page as of 1 October 2026. Check the current offer before comparing long-term cost. |
When SuprFlow is worth trying
If you use an Apple Silicon Mac and want a compact dictation loop, test SuprFlow's hotkey, language choice, snippets, dictionary, and output in the apps where you write. Start with its default local cleanup. Try a surname, an acronym, a list, a number, and a spoken correction. If the resulting text needs less manual editing in your real workflow, that matters more than a model count. Decide whether its local transcription history and clipboard feature suit your retention policy.
Do not buy on a blanket “nothing leaves your Mac” assumption. SuprFlow includes optional hosted text formatting, release telemetry, and account checks. Verify those paths in the signed build.
When Superwhisper is worth trying
Superwhisper's current offline page offers on-device recognition and says the app can work without an account in offline mode. Its model catalog offers more combinations: local audio recognition, local rewrite, hosted recognition, or hosted rewrite. That flexibility can help when a team needs a different model for language, hardware, or latency. It also makes configuration review essential: a cloud speech model sends audio, whereas a cloud language model receives text.
If procurement requires documented enterprise controls or an assurance report, ask Superwhisper for the current materials and confirm they cover the selected feature and deployment. Do not infer that a public “HIPAA compliant” label approves a specific clinic's use, and do not infer SuprFlow is disqualified solely because it is local-first. Both need a configuration-specific review.
A fair 15-minute comparison
Use the same Mac, microphone, language, destination app, and synthetic script. For each product, record its app version, exact speech model, rewrite model or mode, network status, time from release to usable text, manual corrections, and whether the text landed in the correct field. Run once with all content-processing models local, then separately test any hosted mode you would actually allow. Do not compare Superwhisper's strongest paid cloud model with SuprFlow's local default and call the difference a product benchmark.
Is Superwhisper cloud-only?
No. Its official documentation lists multiple on-device speech and language models and an offline app mode. It also offers cloud models. Choose and verify the specific path.
Is SuprFlow always fully local?
Its speech path and default cleanup are local. Hosted formatting, account/license calls, telemetry, and model downloads are separate network flows. A custom Ollama endpoint may also be remote.
Which one is better for confidential work?
The better fit depends on the approved build, model path, provider agreements, local retention, telemetry, destination app, and organization policy. A local-only configuration in either product reduces content transfer, but it does not replace a full review.