SundownAdvocate Program
🌅

Welcome, Advocate.

You've been invited to join the Sundown Advocate Program. Free lifetime access to the most advanced screen protection for Mac.

What you get

Lifetime access to Sundown

All features unlocked forever. No subscription, no expiration.

99.7% blue light protection (500K)

5x deeper than Night Shift. The deepest screen tint available on Mac.

Flicker-Free Mode + Anti-Dithering

Eliminate PWM headaches and Apple Silicon GPU flicker. Features only Sundown offers.

Early access to new features

Sun-arc visualization, Oura integration, and more — you'll see them first.

How to activate

1

Download Sundown

Download Sundown.dmg

macOS 13+ • Apple Silicon • 398 KB

2

Open the DMG and drag to Applications

Double-click the DMG, drag Sundown to Applications folder.

3

Enter your license key

Use the key provided to you by the Sundown team. It activates lifetime access instantly.

4

Protect your eyes tonight

Click the moon icon in your menubar. Try the Biohacker preset for maximum protection.

Pro tips

  • Open Settings and try Flicker-Free Mode if you ever get screen headaches
  • Enable Follow the Sun to auto-activate at sunset
  • The Biohacker preset (500K) blocks 99.7% of blue light — try it 2 hours before bed
  • Sundown uses zero CPU and collects zero data — it just works

Built by Ra Optics • trysundown.com