About Cortex for Mac
Cortex for Mac is an alternative to Apple's Activity Monitor built for Apple Silicon Macs. Where the built-in tool lists every helper, renderer and daemon as its own row, Cortex counts each process under the app it belongs to, so a slow Mac points to a name you recognize rather than a thousand separate entries.
It stores about 30 days of history for each app, which helps explain past slowdowns, and it shows what the Neural Engine and locally running AI models are doing. Metric tiles cover CPU, memory and Neural Engine power. The vendor states that everything stays on the Mac and that the app uses no accounts, trackers or analytics.
Cortex requires macOS 15 or later and runs on Apple Silicon. It is a closed-source commercial app sold as a one-time purchase with no subscription, and a download is offered alongside the purchase. It is a local desktop tool, so there is no self-hosted or cloud edition.
Key features
- Groups hundreds of processes under their apps
- 30 days of per-app history
- Neural Engine and local AI model monitoring
- CPU and memory metric tiles
- No accounts, trackers or analytics
- Built for Apple Silicon on macOS 15+
Good fit for
- βFinding which app is slowing down a Mac
- βWatching resource use of local AI models
- Tags
- macos
- system-monitor
- activity-monitor
- apple-silicon
- performance
- local-ai
- desktop-app
Cortex for Mac: questions and answers
- What is Cortex for Mac used for?
- Cortex for Mac is a macOS system monitor that groups processes into the apps you run, keeps 30 days of history and shows Neural Engine and local AI activity. It is a good fit for finding which app is slowing down a Mac and watching resource use of local AI models.
- Is Cortex for Mac open source?
- No. Cortex for Mac is proprietary (closed-source) software. In the Monitoring & Observability category, open-source options include NeoHtop, System Informer and Sentry.
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