Real-time Mach kernel RAM treemaps, per-core Apple Silicon microsecond deltas, and surgical ~/Library cleanup — in a pure native Swift binary under 15 MB.
Loved by developers, creators, and Mac power users.
“The microsecond CPU matrix found a runaway build daemon in seconds. It has permanently replaced Activity Monitor on my machine.”
“The RAM treemap is the clearest memory visualization I have used. It feels like a native Apple app, not another bloated utility.”
“I reclaimed 38 GB from old app leftovers without touching Terminal. The cleanup preview made it feel completely safe.”
Darwin Mach C-APIs
Pure Swift · No Electron
On-demand · No services
P & E microsecond deltas
Every screenshot below is genuine, captured on Apple Silicon hardware at 2704 × 1620 px.
All system vitals in a single unified view. Tracks physical Mach RSS memory, per-core CPU load, SSD disk utilization, network transfer speeds, and rolling 90-second Catmull-Rom historical charts with under 0.2% CPU overhead.
Tools designed in the x86 Intel era were never built for Apple Silicon's microsecond thread migrations or modern multi-process Electron stacks.
Activity Monitor samples every 1–5 s. Micro-bursts that peg Performance cores for 50 ms vanish inside time-averages — hiding thermal throttling causes entirely.
VSIZE columns show Chrome helpers claiming 100+ GB of RAM that doesn't exist — while real physical RSS leaks quietly grow to fill unified memory.
Dragging an app to Trash removes only the .app. Gigabytes remain in Application Support, Caches, Containers, and Launch Agents — forever.
No Electron. No Node.js. No launch daemons. Direct access to Apple Silicon hardware counters.
Consolidated real-time vitals in a single retina pane. Tracks physical Mach RSS memory, per-core CPU load, SSD disk utilization, socket network throughput, and rolling 90-second Catmull-Rom historical charts with under 0.2% CPU overhead.
Multi-process stacks (Xcode, Chrome, Docker) clustered into proportional squarified rectangles based on actual physical hardware RSS allocation.
Track Performance (P) and Efficiency (E) core clusters independently. Microsecond differential deltas computed directly from Mach core telemetry, pinpointing lock contentions and thermal throttling before your Mac stutters.
Spot what is consuming your fast internal SSD. Visualizes directory hierarchies into nested proportional rectangles to navigate and reclaim gigabytes without Terminal.
Scan and purge orphaned Application Support, Caches, Containers, and plists left by deleted apps without installing background daemons.
Automated heuristics that flag runaway threads, memory growth trends, launch agent conflicts, and uncompressed swap exhaustion before your Mac drops frames.
Per-PID live incoming and outgoing throughput. Spot rogue background sync daemons, cloud backup spikes, and uninvited telemetry calls instantly.
A side-by-side look at MacSentinel vs. Apple's built-in Activity Monitor.
Legacy CPU monitors poll every 1 to 5 seconds. On Apple Silicon M-series chips, thread migrations and microsecond bursts happen 10,000 times faster, leaving you blind to thermal throttling and thread starvation.
Why does Activity Monitor show 120 GB of virtual memory while your Mac has only 16 GB of physical RAM? Learn how Mach kernel physical RSS mapping reveals true memory hogs.
Dragging an app to Trash only removes the .app bundle. Discover how hundreds of orphaned application containers, caches, and logs linger in your ~/Library directory.
Commercial cleaners charge $40–$70 every year. MacSentinel is a one-time lifetime license with zero recurring billing.
Full real-time system monitoring with no restrictions. Perfect for students and curious developers.
Everything in Free plus surgical uninstallation, storage treemaps, and automated diagnostics for 2 Macs simultaneously.
MacSentinel is built by Appsinfoway — a team obsessed with squeezing every drop of performance from Apple Silicon. We were tired of Activity Monitor hiding micro-bursts behind 5-second averages and third-party tools that shipped with 300 MB of Electron overhead.
So we built a native Swift app that talks directly to the Mach kernel, renders 16-core microsecond execution deltas in real time, and visualizes physical RSS memory treemaps — all in under 15 MB.
Questions about licensing, refunds, feature requests, or enterprise volume discounts? We typically respond within one business day.
support@sentinel.digitalDownload MacSentinel in seconds and discover exactly what's consuming your CPU and RAM.
Free space, tame memory pressure, and clean out uninstalled app leftovers with MacSentinel.
