Terms of Service

Last updated: September 16, 2026

The product

EmberTint is Windows desktop software that changes screen color temperature and software brightness. You receive a non-exclusive, non-transferable license to use it on up to 3 computers under your account.

Purchases

Orders are processed by Polar (polar.sh), which acts as Merchant of Record and is the seller for payment and tax purposes. Polar's buyer terms also apply to your purchase.

Monthly renews automatically each month until cancelled. Cancel anytime in the customer portal (My license); access continues until the end of the paid period.
Lifetime is a one-time payment for continued access to EmberTint for as long as the product is offered.

Online validation

Both plans require an internet connection at activation and at least once every 24 hours. Lifetime is not a perpetual offline license.

Acceptable use

Do not share accounts, resell licenses, or reverse-engineer or bypass licensing.

No medical claims

EmberTint is not a medical device and does not diagnose, treat or prevent any condition. It does not replace prescribed eyewear. Fixed software brightness does not guarantee zero PWM flicker.

Disclaimer and liability

The software is provided "as is". Turn it off for color-critical work. To the extent permitted by law, our total liability is limited to the amount you paid in the 12 months before the claim.

Changes

We may update these terms; material changes will be announced on this site.