The Mac app or the browser? Both, really.
For chatting, there is no difference worth arguing about same model, same account, same history, same limits. The app earns its place through reach: a shortcut over every app, a window you can hand it, and dictation that types into Mail. The browser wins on everything to do with not installing software.
Independent guide not affiliated with Meta. The app comes only from Meta’s official site; the browser version lives at meta.ai.
Four things that are identical either way
People assume the app is “the real one” and the browser is a cut-down preview. It is not. If you only ever type questions and read answers, the choice does not matter at all.
The same model
Muse Spark 1.3 answers in both. Nothing is held back for the desktop, and answer quality does not depend on which you open.
The same history
One Meta account, one set of conversations. Start a thread in the browser at lunch, carry on in the app at three your phone sees it too.
The same limits
Allowances are tied to your account, not the surface. Switching to the browser will not reset an image allowance you have just spent. Pricing and limits.
The same image tools
Muse Image generation and editing work in both, because generation happens on Meta’s servers either way.
Three things only the app can do
Everything the app adds comes down to one idea: a web page is trapped in its tab, and a native app is not. It can be summoned over another program, it can look at a window you point it at, and it can type somewhere else.
A browser tab cannot see the spreadsheet in the window behind it, and cannot type into Mail for you. That is the entire argument for the download.
The cost is real, though. Window attachment needs Screen Recording and Accessibility permission, which is a bigger ask than opening a website, and it is the honest reason the app is not in the Mac App Store sandboxed apps cannot do it. It also only runs on Apple silicon with macOS 15 or later, so a chunk of Macs cannot have it at all.
Worth being clear about what is not on this list: the app still only reads and replies. It does not act on your behalf in either form that is Muse, a separate download.
Quick Invoke
⌥Space anywhere. No tab to find, no window to raise the reason people who keep the app keep it.
Read the guideWindow sharing
Hand it one window and ask about what is on screen. Impossible from a tab, and the feature the permissions exist for.
Read the guideSystem-wide dictation
Speech typed into Mail, Notes or any form. The browser can dictate into its own box only.
Read the guideWhat the browser quietly does better
The browser version is not a consolation prize. It runs on any machine an Intel Mac, a Windows laptop, a borrowed computer, a locked-down work machine where you could not install software if you wanted to. For a large number of people that is the whole decision made.
Nothing to install, nothing to update, no permissions to weigh up, and nothing left behind when you close the tab.
It is also always current. The app updates itself in the background and occasionally needs a restart to pick one up; a web page is simply whatever Meta shipped this morning. If a beta build misbehaves, opening meta.ai is the fastest way to find out whether the problem is the app or the service a trick the troubleshooting page leans on.
And on a shared or work Mac, the browser keeps your Meta account out of the system: no menu bar icon, no login item, no permission entries sitting in System Settings after you have moved on.
The full comparison
Everything that differs, in one place. Rows where both columns match are the majority that is the point.
| Mac app | Browser (meta.ai) | |
|---|---|---|
| Install | 16 MB download from Meta, drag to Applications | None open a tab |
| Machines | Apple silicon, macOS 15+ only | Anything with a modern browser |
| Cost | Free | Free |
| Model | Muse Spark 1.3 | Muse Spark 1.3 |
| Conversation history | Synced to your Meta account | Synced to your Meta account |
| Usage limits | Account-wide see pricing | Account-wide the same pool |
| Global shortcut | ⌥ Space over any app | No find the tab |
| Screen context | Attach a window | No paste or upload instead |
| Dictation into other apps | Yes, wherever focus is | In-page only |
| File uploads | Drag onto the composer | Drag or choose a file |
| Image generation | Yes, same allowance | Yes, same allowance |
| macOS permissions | Two optional Screen Recording, Accessibility | None beyond the browser |
| Updates | Background, occasional restart | Always current |
| Works offline | No | No |
| Leaves traces on the Mac | App, login item, permission entries | A tab |
| Best for | Working alongside other apps all day | Occasional use, any machine, no setup |
Neither works offline: every answer is generated on Meta’s servers by Muse Spark 1.3, whichever door you come through. And neither takes actions on your behalf that is Muse.
So which should you use?
Three answers, and the third is the one most people land on after a fortnight.
You want it in the flow of work
You are on an Apple silicon Mac, you will use it several times a day, and at least one of the shortcut, window sharing or dictation sounds genuinely useful. Granting two permissions does not trouble you. Install guide.
You want it occasionally, or you cannot install
You are on an Intel Mac, Windows, or a managed work machine or you simply would rather not hand a new app Screen Recording access for a feature you might use twice.
You are like most people
Quick Invoke for the one-line question mid-task, the browser for a long session on a big screen. History follows you, so nothing is duplicated and nothing is lost.
Using both without making a mess
Sign into the same Meta account in both, and treat them as one tool with two entrances. A useful habit: keep ⌥Space for things you want answered in under a minute, and open the browser when you know you are about to spend twenty. One conversation per topic still matters more than which surface you started it on see how to use it.
If you install the app and then find you never press the shortcut, that is useful information. Uninstalling takes a minute and costs you nothing your conversations live with the account, not the app.
App versus browser: common questions
Is the Mac app better than the website?
For chat, no they are the same model, account and history. The app is better if you want a global shortcut, screen context or dictation into other apps. The browser is better if you cannot install software or would rather not grant permissions. The full comparison.
Do they share my conversations?
Yes. Both sign into the same Meta account and conversations sync, including with your phone. Start in one, finish in the other.
Do they use the same model?
Yes Muse Spark 1.3 in both. There is no better model hidden in the desktop build.
Can I use Meta AI on an Intel Mac?
In a browser, yes. The desktop app is Apple silicon and macOS 15 or later with no Rosetta fallback, so on Intel the web version is the option. Intel Mac support.
Does the browser version need permissions?
None beyond what your browser already has. Screen Recording and Accessibility exist for window sharing and system dictation the two app-only features. What they grant.
Are the free limits different?
No. Allowances are tied to your account, so switching surface does not refresh anything. Pricing and limits.
Which is faster?
Indistinguishable in practice, because the work happens on Meta’s servers. The app feels faster to reach, which is a different thing no tab to hunt for.
Can I add meta.ai to my Dock instead of installing?
You can save it as a bookmark or a Safari web app, which gets you an icon and a window of its own. What it will not get you is the global shortcut, window attachment or dictation into other apps those need the native build.
My app is broken. Should I switch to the browser?
As a test, yes it is the quickest way to tell whether the problem is the app or the service. If the browser fails on the same account too, it is not your Mac. Troubleshooting.
Is there a Windows desktop app?
Not yet, and Meta has committed to nothing publicly. On Windows the browser is the only option for now availability tracks any movement.
Try the tab first. Install if you miss the shortcut.
The browser costs you nothing to test, and a week of using it tells you whether the desktop reach is worth two permissions.
Independent guide not affiliated with Meta. The app comes only from Meta’s official site. On an Intel Mac? Start here.