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All apps/Astro/Install/macOS

How to install Astro on Mac

Astro does what Perplexity Comet does, and Perplexity Comet costs $20/mo. This guide gets you the free one.

What you end up with

Astro installed like any other app on your Mac. It is free, and it stays free — there is no account, no trial and no subscription at the end of this.

Time
About 15 minutes
Steps
6
Cost
Free

Install Astro

  1. 1

    Download Astro

    A complete browser — no BrowserOS, no toolchain, nothing to build. About 231 MB, Apple silicon.

    Download Astro.dmg ↗

    You know this worked when: Astro.dmg finished downloading

  2. 2

    Drag Astro to Applications

    Signed and notarized, so it opens normally — no right-click trick, no Terminal.

    Open the release page ↗

    You know this worked when: Astro opens

  3. 3

    Remove BrowserOS, keep Astro

    They share a bundle ID and profile. In Applications, quit and Trash BrowserOS.app; keep Astro.

    You know this worked when: Only Astro.app is in Applications

  4. 4

    Let the search engine download

    About 150 MB on your first search. Every search after that runs on your own machine.

    You know this worked when: A search returns results

  5. 5

    Choose where answers come from

    Astro ships with publik API selected — no key to paste. Swap in your own route here if you prefer.

    You know this worked when: A model is selected in Settings — publik API unless you changed it

  6. 6

    Coming back later

    Next time: open Astro from Applications, Spotlight, or the Dock — no terminal needed.

    You know this worked when: You know how to reopen Astro

If something goes wrong

Nothing here can damage your computer, and every step can be run again safely. If a command fails, the usual cause is the step before it not having finished.

Still stuck? Tell us what happened and we will fix the guide. Include the step number and we can usually reproduce it.

Have a different setup?

  • How to install Astro on Windows →

This guide follows Blueturboguy07/Astro at the reviewed version 2868ad1. Pinning the version is why the commands here keep working after the project changes.

Back to Astro →