Mac Ninja
About Mac Ninja
One small app. One big headache gone. Mac Ninja unloads idle browser tabs, calms background CPU and disk hogs and clears away tabs AI agents abandoned — without closing your apps. From $9.99 a year, or $24.99 once.
More system apps
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RAMKeeper RAMKeeper is a Mac memory monitor that lives in the menu bar. The free App Store build shows system memory pressure (green / yellow / red) with swap and compressed-memory readings; the free direct download breaks memory down per app and per renderer process and flags hogs such as Chrome helpers, Slack and ChatGPT, with current vs. peak. Pro (one-time purchase) adds threshold rules, Focus Mode to suspend a batch of background apps, and gentle restarts that log the memory macOS actually handed back. No subscription, no ads, no tracking. macOS 12 or later. -
Amply Holds your MacBook at 80% using the charge limit built into macOS, with no helper or admin password, and says in plain words why it is or isn't charging. -
PulseBar System Monitor for Mac PulseBar puts live CPU, memory, network, disk, temperatures, and fan speed in your Mac’s menu bar, with history graphs. Native, signed and notarized. One-time $9, no subscription, no account, no telemetry. -
Multimeter A Mac menu bar app with live meters for battery, CPU, watts, network, timers and your own numbers. Pick a face or build your own. $19.99 once, no subscription. -
OpenNavo OpenNavo is a free open-source Homebrew GUI for Mac with a menu-bar system monitor (CPU, memory, temps, fans), ClamAV malware scanning before installs, leftover-aware uninstall, and disk cleanup. Install and update Homebrew apps in one click; no account required. -
Strata Maps your whole drive in seconds. Removes things you can put back. One-time purchase, no subscription.