Local Sun

Circadian display control for Mac

Your screen
follows the sun.

Local Sun calculates the sun's position where you are, then changes your display's blue light and software brightness with it.

Hold Command and use the brightness keys to choose how strongly your screen follows the sky.

01 Follows local daylight Sun position and twilight, calculated locally
02 Changes color + brightness Blue light and software luminance move together
03 Stays on your Mac No account, tracking, or cloud
One payment. No subscription.

macOS release pending Apple developer approval

A hand-drawn desk and monitor beneath the arc of the local sun.
Set the influence ⌘ Influence 0%
Local Sun influence 0%

Privacy

Your location stays on your Mac.

Local Sun uses location only to calculate the sun's current position. Coordinates and preferences are stored locally. There is no account, analytics SDK, advertising SDK, tracking, or cloud database.

Accessibility permission is used only to detect and handle brightness keys. Local Sun does not read, record, store, or transmit typed text.

Support

Direct help from the developer.

Local Sun requires macOS 13 or later, Location access for its solar model, and Accessibility access for global keyboard control.

Email support

One-time purchase

Local Sun will be $29.

Pay once and keep it. No subscription. Secure checkout and license delivery will be handled by Lemon Squeezy when the signed macOS release is ready.

Get the release notice