Honest framing first: TextSight does not ship a native macOS app yet. There is no .dmg, no notarised .app bundle, no Mac App Store listing. The product is a web app at app.textsight.ai that runs in every Mac browser (Safari, Chrome, Firefox, Edge, Brave, Arc), plus a Chrome extension that adds one-click rewrite inside Gmail, LinkedIn, ChatGPT, and most webpage editors on any Chromium browser on macOS. Intel and Apple Silicon (M1, M2, M3, M4) Macs are equally supported because the rewrite model runs on TextSight servers, not on your Mac. A native macOS build is on the roadmap.
Most queries that begin with "ai humanizer for mac" or "ai humanizer dmg" expect a downloadable binary or a Mac App Store link. The truthful answer is that TextSight is a web product in 2026. The browser is the canonical surface today, the Chrome extension on Chromium browsers is the closest in-page integration, and a native macOS build is in planning. This page exists to set the expectation cleanly.
TextSight does not currently ship a notarised macOS .dmg, an .app bundle, a Mac App Store listing, a Catalyst port, or an Electron shell. There is nothing to download from the website. Anyone offering a "TextSight.dmg" or "TextSight.app" on a third-party site is not us; do not run it. The only TextSight surfaces on a Mac are the web app at app.textsight.ai, the Chrome extension on the Chrome Web Store for any Chromium browser, and the Progressive Web App install path through Safari or Chrome.
The AI rewriter logic runs entirely on TextSight servers. A native macOS shell in Swift or Catalyst would do nothing the browser does not already do; it would download text, hit the same HTTPS endpoint, and render the response. A native Mac app mostly buys a Dock icon and a chrome-less window, which Safari Add to Dock and Chrome Install app already deliver as PWAs. Shipping a notarised macOS binary, a hardened runtime, and a 99 USD Apple Developer membership is engineering effort that the team chose to put into the AI rewriter model instead.
A real OS-level keyboard shortcut that triggers rewrite on any selected text anywhere on macOS (not just inside browser tabs), a menu-bar item for quick access, a Services menu hook without Automator, native share-target integration with the macOS Share menu, and native drag-and-drop with batch processing. Those are real conveniences for heavy Mac users, which is why the native build is on the roadmap. None of them change the rewrite output. The web app and the Chrome extension already cover the same AI rewriter with the same three modes and the same Authenticity Score.
The web app uses standard web technology with no browser-version gating and no Rosetta requirement. If your Mac browser renders Gmail and Google Docs, it runs the AI rewriter.
Apple ships Safari as a native arm64 binary, so it is the most power-efficient Mac browser on a MacBook on battery. The AI rewriter runs fine on Safari 16 and later on macOS Big Sur, Monterey, Ventura, Sonoma, and Sequoia. Safari does not currently accept the TextSight Chrome extension because it uses a different extension format (Safari Web Extensions); the in-page rewrite workflow on Safari is paste-and-rewrite through the web app. On macOS Sonoma and later, the Share menu Add to Dock action installs the web app as a Dock app.
Chrome on Mac is a universal binary that runs natively on Intel and Apple Silicon. It supports the full Chrome Web Store, so the TextSight Chrome extension is available with one-click rewrite inside Gmail, LinkedIn, ChatGPT, and most webpage editors. Chrome also has the most complete PWA install path. The trade-off is battery life: Chrome on a MacBook Air on battery uses 20 to 30 percent more power than Safari for the same session. Users who care more about extensions than battery pick Chrome.
The Browser Company's Arc is Chromium under the hood, so it accepts the TextSight extension. Arc's window management is the cleanest on Mac, with a sidebar for tabs and Spaces. Brave, Edge, Vivaldi, and Opera also share the Chromium engine, so the same Chrome extension build runs in all of them, and the same PWA install path works through the address-bar install icon.
Firefox on Mac runs the AI rewriter fine. It is neither Apple's nor Chromium-based, so it does not accept the Chrome extension and does not offer PWA install. Privacy-focused Mac users who prefer Firefox keep it as the daily browser and still get the full web app, just without the extension or installed-app paths. A Firefox extension is on the longer roadmap.
The closest thing to a native Mac app today is the Progressive Web App install. Two paths, both finish in under thirty seconds, and both give you a real Dock icon, a Launchpad entry, and Cmd-Tab cycling.
Open app.textsight.ai in Safari on macOS Sonoma or later. Click the Share button in the toolbar, scroll down, and pick Add to Dock. Safari prompts for a name and icon, then creates a Dock app and a standalone window. The app shows in Launchpad, in Spotlight, and in Mission Control. Cmd-Tab cycles to it like any native Mac app. No address bar, no tabs, just the AI rewriter. Sign in once and the install remembers the session.
Open app.textsight.ai in Chrome, Edge, Brave, or Arc. Look for the install icon at the right edge of the address bar, click it, and confirm. The Chromium PWA install creates a Dock icon, a Launchpad entry, and a Spotlight result. The window behaves identically to the Safari version. Many heavy Mac users prefer the Chromium PWA because it integrates with the rest of the Chrome profile, including the signed-in TextSight account state and the Chrome extension.
The PWA install gives you a dedicated Dock icon, a chrome-less window, Cmd-Tab access, Launchpad presence, Mission Control behaviour as a separate window, and full-screen support per Space. It does not give you an OS-level Services menu hook, a global keyboard shortcut bound by macOS itself, or share-target integration with the system Share menu. Those are what a native macOS build would add; the PWA is the close-enough option until then.
The web app, the Chrome extension, and the WordPress plugin all share one TextSight account, one monthly word quota, and one billing path. Yearly billing saves 25%.
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Yearly billing saves 25%. View full pricing →
Mac writing apps almost never expose a plugin API for third-party AI tools. The honest workflow is system clipboard plus Cmd-Tab, and macOS makes the round trip fast once the TextSight PWA or extension is set up.
Light, Balanced, and Maximum sit as a toggle directly above the result panel. Run the same text through two modes back to back and pick the rewrite that reads more naturally. Balanced is the default for nine pieces in ten; Light is the right pick for technical or research writing where meaning preservation matters most; Maximum is for marketing and social copy where voice variation is welcome. All three modes work on every Mac browser and every tier including free.
Select the paragraph that needs rewriting with Cmd-A inside the field or by dragging across the text. Cmd-C copies it. Cmd-Tab switches to the TextSight tab or PWA. Cmd-V pastes, click Rewrite, the rewrite returns in 15 to 20 seconds. Cmd-C copies the result, Cmd-Tab back, Cmd-V pastes over the original. The full round trip is under five seconds once muscle memory sets in. Apple Notes preserves formatting on paste; Pages and Mail keep paragraph structure.
The Chrome extension on Chromium browsers (Chrome, Edge, Brave, Arc) skips the Cmd-Tab dance for web editors. Highlight a sentence in Gmail compose, a Notion page, a LinkedIn post, a ChatGPT chat box, a Substack draft, or any web text field. Click the toolbar icon or right-click and pick Rewrite with TextSight, choose a mode, and the rewrite drops back in place. Safari users on Mac use the paste-and-rewrite workflow until the Safari extension ships.
Most serious Mac writers draft in a native app rather than a browser. None of these apps expose a public plugin API for third-party AI tools, so the workflow is the same Cmd-C, Cmd-Tab, paste, rewrite, Cmd-C, Cmd-Tab back, Cmd-V loop. iA Writer's Style Check pairs well with the Authenticity Score for two independent quality reads. Ulysses' sheet structure lets you rewrite one sheet at a time before export. Scrivener users rewrite scene by scene.
Mac users who want a systemwide Rewrite with TextSight action can build one in Automator in about ten minutes. Open Automator, create a new Quick Action, set the input to selected text in any application, add a Run Shell Script step that opens app.textsight.ai with the selection via URL parameter, and save. The Services menu now offers Rewrite with TextSight on any selected text systemwide. Bind it to a global keyboard shortcut in System Settings, Keyboard, Keyboard Shortcuts, Services for a one-keystroke trigger. Power-user setup; most Mac users prefer the Chrome extension because it does the same thing without an Automator script.
The main AI rewriter landing page covering modes, Authenticity Score, and the web-app paste flow.
Open AI rewriter →Mac, Windows, and Linux overview. Web app, Chrome extension, and what a native build would add.
See desktop page →One-click rewrite in Gmail, LinkedIn, ChatGPT on every Chromium browser on macOS.
See the extension →Full tier breakdown for Free, Starter, Pro, and Business. Annual billing saves 25%.
See pricing →Open app.textsight.ai in Safari, Chrome, Arc, or Firefox on any Mac. Install it to the Dock with Safari Add to Dock or Chrome Install app. Add the Chrome extension on Chromium browsers for one-click rewrites inside Gmail, LinkedIn, and ChatGPT. Same AI rewriter, same three modes, same Authenticity Score.