Download

Get CircadianShield

Start your 14-day free trial. Full Pro features, no charge until trial ends.

macOS

Version 1.0 · 2.5 MB

Download for macOS

What you get

  • Full Pro features for 14 days
  • No credit card required to download
  • Notarized by Apple

System Requirements

  • macOS 14.0 (Sonoma) or later
  • Apple Silicon (M1/M2/M3/M4) or Intel
  • 64 MB RAM · 25 MB disk space

Windows

Coming Soon

Coming Soon

Planned Requirements

  • Windows 10 or later
  • x64 processor
  • 64 MB RAM
  • 25 MB disk space
Installation

Up and running in 3 steps

1

Download & Open

Download the .dmg file and open it. Drag CircadianShield to your Applications folder.

2

Grant Permissions

On first launch, allow Accessibility access so CircadianShield can apply the display overlay.

3

Set Location

Choose a city preset or auto-detect your coordinates. CircadianShield starts protecting immediately.

Pricing

Choose your plan

Start with a 14-day free trial. All Pro features included, no credit card required.

Basic

Essential circadian protection

$4/mo

or $39/yr (save 19%)

Includes

  • Solar-based color temperature
  • Auto, Movie, Reading, Coding, Disabled modes
  • Location-aware sun tracking
  • Menu bar controls

Pro

Full circadian health suite

$8/mo

or $79/yr (save 18%)

Everything in Basic, plus

  • All 11 display modes (Gaming, Presentation, Biohacker…)
  • Health dashboard & light debt tracking
  • Ambient soundscapes
  • PWM flicker protection
  • Per-app display profiles
  • Priority support

14-day money-back guarantee on all plans. Contact support