Can You Use Perplexity AI on a Computer?

Can You Use Perplexity AI on a Computer?

Yes, and the confusing part is that searching for this turns up two different products with the word Computer in the name.

There is Perplexity Computer, an agent Perplexity describes as a digital worker. And there is Personal Computer, which is the name of Perplexity's desktop app for Windows and Mac.

They are related — one is built on the other — but they have different availability, different plan requirements and, in one case, different platforms.

On top of that, Perplexity also ships Comet, a separate browser, with its own download and its own support site. Three products, overlapping names, and no first-party page that lays them side by side.

This guide does that, using only Perplexity's own pages, and flags the places where those pages disagree with each other.

What is the short answer?

Yes. Perplexity has a native desktop app for both Windows and Mac, and you install it the same way you would install anything else — from the Microsoft Store or from Perplexity's website on Windows, and from a downloaded disk image on Mac.

Perplexity's help center states the requirements plainly: "Windows 10 version 1809 or later, or macOS 15 or later." That macOS floor is high. macOS 15 rules out a lot of still-working Macs, and it is a notably stricter requirement than Perplexity's own Comet browser asks for.

You can also just use Perplexity in any browser without installing anything. The desktop app is not a prerequisite for using the service; it is a different, more capable surface for it.

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Two different things are called Computer

This is the single biggest source of confusion on this keyword, and it is worth untangling before anything else.

Perplexity Computer

Perplexity announced this on February 25, 2026, describing it as "a general-purpose digital worker that operates the same interfaces you do." The announcement says it is "available to Perplexity Max subscribers" and "will also be available to Enterprise Max users soon."

Notably, that announcement names no operating system at all. It describes the product as "universally accessible without localized setup," which reads as a deliberate signal that Computer is not a thing you install.

Personal Computer

This is the desktop app. Perplexity's help center is direct about it: "Personal Computer is the Perplexity desktop app for Mac and Windows," and it was "rebuilt from the ground up around Computer."

So Computer is the agent, and Personal Computer is the app the agent lives in on your machine.

The Windows version launched later than the Mac one — Perplexity's blog post "Personal Computer is now available on Windows," dated July 28, 2026, opens with "Today we're launching Personal Computer for Windows."

Why the distinction matters

Because the plan requirements differ, and Perplexity's pages do not agree on what they are. That is covered below.

How do you install it?

On Windows there are two documented routes. From the Microsoft Store, the instruction is simply to "Select Install." From Perplexity's website, you "Download and run the Windows installer."

On Mac there is one route, and the steps are the familiar macOS pattern: "Open the downloaded disk image (DMG)," then "Move Perplexity to Applications."

Linux is a special case and mostly a no. Perplexity's help center documents Linux support only through something called Portable Computer, running on NVIDIA DGX Spark or supported RTX GPUs — hardware-specific rather than a general Linux build.

If you are on an ordinary Ubuntu laptop, the browser is your route.

There is one more hardware tier worth knowing about. Running models locally on a Mac requires Apple silicon with 24 GB of memory or more, and that capability is documented as being for "Pro, Max, and Enterprise" subscribers. Local inference is not something the free tier gets.

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The old app has already stopped working

If you installed a Perplexity desktop app before 2026 and it has stopped launching, this is why.

Perplexity's help center has a page titled "Upgrade from the Old App," and it is unambiguous on two points.

First, "older Windows and Mac apps do not upgrade to the new app automatically" — there is no silent migration, you have to go and install the new one. Second, "the old Windows app will stop working on October 15, 2026."

That date has passed. The page still states it in the future tense, which is a small but useful signal about how closely this documentation is being maintained.

There is also a reassurance worth repeating, because people hesitate before uninstalling: "Removing an old app does not delete your Perplexity account, Projects, or cloud-based threads." Your history is server-side.

What Perplexity does not publish anywhere we could find is an equivalent shutdown date for the old Mac app. The Windows cut-off is stated precisely; the Mac one is simply absent. If you are on an old Mac build, you are working without a published timeline.

What does the desktop app do that a browser cannot?

This is where the app earns its install, and the capabilities are substantially beyond a web page.

Perplexity's product page for Windows describes "an always-on AI agent on your Windows desktop that works across your local files and Microsoft apps," and frames the pitch as "orchestrate work across local files, apps, and the web."

The specifics that matter:

• Local file access. The help center describes a Desktop tools capability on Windows that "lets the app read and write local files and run shell commands on this device." That is not a browser capability, and it is the real reason to install.
• Microsoft app integration. The product page names Excel, PowerPoint, Word, Outlook and OneDrive as surfaces it works inside.
• Model orchestration. Perplexity's wording is "orchestrate agents across 15+ models to do deep work across your files and apps."
• Connectors. The page claims "400+ app connectors."
• Voice. Voice Mode appears on the product page, and the macOS permissions table lists Microphone access to "enable voice input and audio features."
• Admin controls. Folder scoping, per-user permissions and activity logs are all named, which is the language of an enterprise rollout rather than a consumer app.
• Browser control. The desktop app can drive Comet.
• Remote sessions. Remote access "allows desktop sessions from the Perplexity web and mobile apps," so the machine does the work while you watch from a phone.

Read as a group, those are operating-system privileges, not web-app features. Shell command execution and read-write file access are the two to think carefully about before you grant them, and Perplexity's own folder-scoping control exists precisely because that scope is broad by default.

Comet is a different download

Comet is Perplexity's browser, and it is not the desktop app. Perplexity's page describes it as "the AI browser that acts as a personal assistant" and a "Chromium-based browser that integrates advanced AI capabilities powered by Perplexity." It is listed as "available for Mac, Windows, iOS, and Android."

Three things make it clearly separate rather than a bundled component. It has its own download. It has its own support site at a different address. And it has its own, lower, operating-system requirements: "Windows 10 or later, macOS 11 (Big Sur) or later," against the desktop app's macOS 15.

That gap is the practical takeaway. On a Mac running macOS 11 through 14, Comet installs and the Perplexity desktop app does not.

What no first-party page says is that Comet has replaced or superseded the desktop app. The only documented relationship runs the other way — the desktop app can control Comet. Secondary coverage speculating that one is eating the other is speculation; Perplexity publishes no such statement.

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What Perplexity does not publish

The gaps here are as informative as the documentation, and a couple of them are contradictions rather than omissions.

The plan requirement contradicts itself. The Windows product page says the feature is "rolling out to Pro and Max subscribers." The launch blog post says "Personal Computer is available now for Pro, Max, and Enterprise subscribers on Windows 10 and 11." Enterprise appears on one page and not the other. If you are on an Enterprise plan, trust the blog post and expect to have to ask.

There is no release stage. The product page uses the words "rolling out" and never says generally available, beta, preview or waitlist. For a product that touches your filesystem, the absence of a stated maturity label is worth noticing.

There is no documented keyboard shortcut. For an always-on desktop assistant, you would expect a global hotkey to be the first thing documented. We could not find one named on any Perplexity page.

Comet's pricing question is asked and not answered. The Comet page carries an "Is Comet free?" FAQ entry whose answer did not render as served text.

No old-Mac-app end date, as covered above.

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When is the browser enough?

For most people, most of the time. If what you want from Perplexity is search with citations, the browser does that identically and costs you no install, no permissions and no update maintenance.

Install the desktop app when the work involves files on your machine — reading a folder of documents, producing an Excel output, drafting from local material. That is the whole case for it, and it is a good one.

Skip it if you are on macOS 14 or earlier, on an ordinary Linux machine, or on a free plan, since the local-model and agent capabilities are tied to paid tiers. Comet is the fallback on older Macs.

If you are weighing Perplexity against the alternatives rather than choosing a surface for it, our guide to what Perplexity AI actually does covers the feature set in more detail.

Final thoughts

Yes, you can use Perplexity on a computer, and the real answer to the question is that there are three ways to do it: the web app in any browser, the Personal Computer desktop app on Windows 10 or macOS 15 and later, and the Comet browser on noticeably older hardware.

The naming is the hard part. Computer is the agent, Personal Computer is the app, Comet is the browser, and Portable Computer is the Linux-on-specific-GPUs edge case. No single Perplexity page puts those four names next to each other, which is why this question gets asked at all.

Before you install, know that the desktop app asks for read-write access to your files and the ability to run shell commands, that the plan requirement is stated two different ways on two Perplexity pages, that no release stage is published, and that the old Windows app stopped working on October 15, 2026 without upgrading itself.

None of that is a reason to avoid it. All of it is worth knowing first.