Know which of your apps Rosetta is keeping alive.
Apple is retiring Rosetta 2. Rosetta Radar checks every app on your Mac and shows you, in plain language, which ones are Intel-only and will stop opening — and what each app even does.
A one-minute checkup for your whole Mac.
Every Mac quietly runs a mix of app types. Apps built only for Intel chips lean on Rosetta 2 to work on Apple Silicon — and when Apple removes it, they simply won't open. Rosetta Radar sorts every app you have into Intel-only, Universal, and Apple Silicon, so you know exactly what needs an update, a replacement, or nothing at all. For each app it also names the developer and, when it can, links straight to their site to check for an update — and shows when you last opened it, so you can spot what you'll actually miss.
Open it. Read the report. Done.
Double-click to scan
No installer. It asks once whether to include external drives, then shows a live progress bar while it works — nothing to configure.
It reads each app's real program file
Instead of trusting a label, it inspects every app's actual binary — the same signal Finder uses — so the verdict is accurate on any macOS version.
You get a report & a spreadsheet
A clean report opens in your browser — sort by any column and filter as you type. Each app shows its developer and, when known, a link to check for an update, plus when you last opened it. A matching CSV is saved too.
Your data never leaves your Mac.
No cloud, no account, no sign-up — the scan happens entirely on your own computer. Rosetta Radar recognizes about 6,000 common Mac apps out of the box, so it describes and links most of what you have with no internet at all. The one exception is an optional lookup you can switch on for anything it doesn't already know, which sends only those app names (to Apple's App Store search and Wikipedia) to fetch a description. Everything else stays on your Mac.
Offline by default.
No network connections at all — unless you explicitly turn on description lookup. Runs fine on a fully offline Mac.
No account, no tracking.
No sign-in, no email, no analytics. Nothing to register, nothing collected.
Saved only to your Desktop.
The report and spreadsheet are written to your Desktop, for your eyes — delete them anytime.
Open and inspectable.
It's a readable script, not a black box — anyone technical can see exactly what it does.
Most checkers want your data. This one wants to help.
Plenty of tools and websites will tell you about Intel apps. The difference is where your information goes, what it costs, and whether it actually explains what it found.
| Rosetta Radar | Online checkers & typical utilities | |
|---|---|---|
| Price | Free | Often paid or freemium |
| Where it runs | 100% on your Mac | May send your app list to a server |
| Sign-in required | None | Sometimes |
| Explains what each app does | Yes — plain language | Rarely |
| Recognizes common apps offline | ~6,000 built in | Usually online-only |
| Names the developer & links to updates | Yes | Rarely |
| Shows when you last used each app | Yes | No |
| Sortable, filterable report | Yes | Varies |
| Exports a spreadsheet (CSV) | Yes | Sometimes |
| Finds apps everywhere (Spotlight sweep) | Yes | Varies |
| Installation | None — just open it | Often an installer |
Questions, answered.
Will it change or delete any of my apps?
What is Rosetta 2?
Do I need an Apple Silicon Mac?
How long does a scan take?
Why does macOS ask me to confirm the first time?
It won't open when I double-click it — how do I fix that?
If macOS still refuses — for example it says the app "can't be opened" or "is damaged" — open System Settings › Privacy & Security, scroll down to the note about Rosetta Radar, and click Open Anyway, then confirm. First make sure you've unzipped the download and are opening the app from a normal folder (like Applications or your Desktop), not from inside the .zip. Nothing needs to be "installed" — Rosetta Radar just runs.
Is it really free?
See what's living on borrowed time.
Run it once and you'll know exactly which apps to update, replace, or stop worrying about.
Download Rosetta Radar — free