Disclosure: this article is published by Relay, and author Raymond Zhu is a founding member. It is a documentation-based explainer, not a hands-on benchmark. Third-party features were checked against official pages on October 29, 2026 and can change; Relay facts were checked against Relay’s product information and Privacy Policy on the same date. Sources: Relay Privacy Policy, Relay for macOS.
Context-aware dictation adds information that isn’t in the audio.
A basic dictation tool turns sound into words at the cursor. It does not know whether those words are going into a text message, a formal email or a Terminal prompt, or that the name you just said is spelled the way it appears in the window behind it.
Context-aware dictation closes some of that gap by reading information alongside your voice. Depending on the product, that can be the name of the active app, text in the current window, text you have selected, a screenshot, or a saved profile of the people, words and style you use. The audio is the same; what the tool knows about where it is going is not.
If you are new to the category, choosing a voice input method on a Mac explains how this differs from voice control and spoken chat.
Four kinds of context, and what each one changes.
The app you are in mostly changes form. A spoken idea can become a short chat message, a structured email or a command, depending on where it lands. The words you said are the raw material; the destination sets the shape.
Selected text sets the target. If you highlight a paragraph and say “make this friendlier,” the tool needs that selection to know what to rewrite. Without it, the instruction would simply be typed out.
On-screen text mostly helps with spelling. A colleague’s unusual surname, a product code or a function name visible in the window gives the tool a better chance of writing it correctly. That is the reasoning behind screenshot-based features.
Memory supplies what isn’t on screen at all: who the recipient is, which language you prefer with them, the projects you are working on and the terms you use.
Many dictation apps now offer it.
Context awareness is not unique to any one product. As checked on October 29, 2026: Wispr Flow’s data controls page describes Context Awareness, in which relevant text data from the active app window may be used to improve transcription. Aqua Voice’s Deep Context takes one screenshot as you start dictating, scans it for terms and then discards the image; it is off by default and available on Mac and Windows.
Superwhisper’s mode settings include Application, Copied text and Selected text context options for its Super and Custom modes. The open-source VoiceInk describes a Context Aware feature that understands screen content. Feature names, plan requirements and defaults differ, so read each product’s current page rather than assuming two context features are equivalent.
How Relay uses context.
Relay starts from a different premise. We believe useful dictation needs one universal layer of context about you, the people you write to, your language, your projects and your terminology, rather than a separate profile inside each app. Relay for macOS combines voice input with user-enabled computer context and long-term memory, and shapes wording for the application, recipient, language, tone and your established preferences while preserving what you meant. In Terminal, for example, it can produce the intended command rather than prose describing that command.
Relay’s Privacy Policy sets out the boundary. It can read limited context through the macOS Accessibility API, such as the active window’s title and text you have selected. It takes a screenshot of the current window only, not the whole screen, when a spoken instruction needs visual context or when you trigger a capture, and you can turn visual context off. Context data such as your personal dictionary and memory is stored on your Mac, where you can edit or delete it; excerpts go to AI providers when a request uses them or when Relay updates these features, and Relay doesn’t store them on its servers. As with any context feature, check the result before you send it.
Sources: Relay Privacy Policy, Relay for macOS.
Where context helps, and where it gets in the way.
Context earns its place on names, replies and format changes: writing back to a thread you can see, spelling a client’s name the way their email signature does, or turning a spoken instruction into a command instead of a sentence.
It can also mislead. If focus is on the wrong window, a reply can be shaped for the wrong conversation. A stale selection can be rewritten when you meant to add new text. And anything visible on screen is a candidate for context, which matters if sensitive material is open.
How to judge a context feature in a trial.
Say the same idea in three places: a chat app, an email and a document. Check whether the form changes in a way you would have chosen yourself. Then dictate a reply to a visible message that includes an unusual name from that message.
Next, select a paragraph and ask for one specific change. Finally, switch context off and repeat one test. If the results are the same, the feature is not doing much for your work. If they are better with context on, decide whether that improvement is worth the permissions involved. For a wider shortlist, see the best dictation apps for Mac.