Typeahead adds AI autocomplete to every app on your Mac for a one-time fee

22 June 2026 · 3 minute read

Most AI writing tools ask you to change where you write. Typeahead does the opposite. It works at the macOS system level, putting inline AI suggestions directly at your cursor in whatever app you already use, from Mail to Slack to any native text field on your computer.

The pricing is a one-time payment of $79. No subscription, no monthly fee, no annual renewal. In a market where most AI writing tools cost between $15 and $30 per month, that is a meaningful distinction if you expect to use it for more than a few months.

How it actually works

As you type, Typeahead generates word and sentence completions that appear greyed out at your cursor position. Press Tab to accept. Keep typing to dismiss. The experience is close to GitHub Copilot's code completion, but for natural language across any app.

All AI processing runs locally on your Mac. Nothing you type is sent to a server. For anyone who writes about confidential topics professionally, this is a material difference from cloud-based writing assistants. It also means suggestions still work when you have no internet connection.

Coverage extends to native Mac applications and to the main browser-based writing tools including Notion, Google Docs, and Substack, with some variation on more customised web editors.

Who it genuinely suits

Typeahead works best for people who write a lot in native Mac apps and want a low-friction completion layer without a recurring bill. The local processing runs most smoothly on Apple Silicon, which has the onboard Neural Engine for this kind of inference. On older Intel Macs the experience may be noticeably slower.

Skip it if most of your writing happens in a browser. Web app coverage exists but is partial and not guaranteed across all editors. For that use case, a browser extension or a cloud-based tool with stronger web integration is likely a better fit.