Download Mactivity.

One small download, signed with our Developer ID and checked by Apple’s notary service. Drag it to Applications, add your license, and it settles into your menu bar.

Mactivity needs a license to run: $10 once, for three Macs. Buy it now, or download first and buy when you’re ready.

Mactivity 1.5.3, about 14 MB. For Macs with Apple silicon, macOS 26 or later.

Homebrew users can run brew install --cask mactivity/tap/mactivity instead; it also installs the mactivity command.

Get set up

1. Open the disk image and drag Mactivity onto the Applications folder.
2. Open Mactivity from Applications. The first time, macOS asks whether to open an app from the internet; choose Open.
3. Add your license: click Activate Mactivity in your receipt email, or paste the key into the window that appears. No license yet? Buy one for $10.Add your license key in the window that appears. Licenses are by invitation until the store opens: ask at feedback@mactivity.app.
4. Optional: for a storage map that sees every folder, add Mactivity under System Settings → Privacy & Security → Full Disk Access. Without it, macOS asks folder by folder, and anything you decline shows as “Not readable”.

Staying up to date

Mactivity checks for updates once a day and installs them when you agree. To check now, choose Mactivity → Check for Updates…. What changed in each version is on the changelog.

Good to know

• One license, three Macs. Activating on a fourth? Free a seat first with Settings → License → Deactivate This Mac on one you no longer use.
• Offline is fine. Mactivity keeps working for 30 days between license checks.
• Other accounts' and system processes can only be inspected or quit with the optional helper. They always count toward the totals.
• Per-app volume is experimental and stays off unless you enable it in Settings → General.

Need a hand?

Write to feedback@mactivity.app, or use Help → Send Feedback… in the app. Mention your Mac model and macOS version, and what happened just before the problem. Mactivity collects nothing on its own, so an email is how we hear about it.