Download SystemWatch
SystemWatch comes in two editions. Both need macOS 15 or later and run on Apple silicon and Intel Macs.
Website edition
Every feature, including fan control, every temperature sensor, AI Tune-Up and Startup Items. One-time purchase for up to 3 Macs: $14.99 $5.99 for the first 100 copies. Full refund within 14 days.
Already bought it?
Download SystemWatch, open the disk image, drag SystemWatch to Applications, then open it and paste the license key from your email.
Mac App Store
Free to download, with SystemWatch Pro as a subscription: $5.99 a month or $49.99 a year, each with a 3-day free trial. The built-in AI assistant is included, but Apple's sandbox leaves out fan control, sensors and startup items.