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Sundown vs Tidix

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Sundown compared with Tidix
DetailSundown logo SundownTidix logo Tidix
What it doesBlock blue light and remove screen flicker on your Mac so you can feel better, think clearer and sleep deeper Native macOS system monitor that shows every core, GPU, Neural Engine, disk, network interface, and process power draw
StageNot given Startup
FoundedNot given Not given
Based inNot given MX
Pricing modelFreemium Paid
PricingMonthly $4.99/mo (after 7-day free trial), Annual $39/year (after 7-day free trial, saves 34% vs monthly), Lifetime $79 once (pay once, own forever, works on 2 computers) Launch price $5 per Mac (one-time), regular price $49 per Mac after launch. Pricing by number of Macs: 1 Mac at $5, up to 100 Macs available at launch pricing. Each license seat covers one Mac and moves with you when switching devices.
Key features
  • Filters blue light down to 500K deep red
  • Removes screen flicker with Flicker-Free Mode
  • Anti-Dithering to smooth visual display
  • Automated scheduling with up to six time-based steps
  • Seven presets plus custom schedule options
  • Runs natively on Apple Silicon and Intel Macs
  • No tracking or telemetry
  • Supports macOS 12 Monterey through macOS 26 Tahoe
  • Individual CPU core monitoring with live charts over 1, 5, or 30 minutes
  • Process tree with app icons, CPU, memory, threads, disk, power and wakeup columns
  • Installed apps list with version, source, last use, and disk size
  • Startup items monitoring showing system extensions and kernel drivers
  • Quick search across processes, apps, and disks with keyboard shortcut
  • Monitoring profiles from Power saving to Diagnostic with global keyboard shortcut
  • Support for four languages and light/dark themes with accent color customization
  • Licensed per Mac with seat-based activation and moving between devices
What makes it different
  • Reaches 500K deep red, far deeper than Night Shift's 2700K limit
  • Only blue light app with Anti-Dithering for Apple Silicon Macs
  • Harvard-backed science: blocks blue light that delays circadian clock by 3 hours
  • Produces ~58% more melatonin and ~24 min longer sleep
  • Gentle automated scheduling that eases changes gradually in background
  • Native Swift and AppKit built for macOS, not using Electron
  • Minimal system overhead with sampling only while visible, uses fraction of one core
  • Privacy-focused with all monitoring data staying local on your Mac
  • One-time purchase with all features and updates included for life
  • Safe updates with daily checks and signature verification before installation
Community votes00
DR (Domain Rating by Ahrefs)26 +2 (up) since last check3 +1 (up) since last check
Trust Flow (Majestic)62
Citation Flow (Majestic)279
Referring domains (Majestic)352

5 details filled in for both companies.

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