+28%
higher error risk on the night shift vs day.
Source: Journal of Circadian RhythmsFor SRE, DevOps, platform, and incident response teams
ScreenMercy warms your on-call team's screens through the night, tuned to each engineer's real horizon, so a 3 a.m. page does not start with a wall of cold blue light. It clears automatically by morning. Nothing to configure, nothing leaving the device, deployed across the whole rotation.
Privacy-first. Zero telemetry. Deploys via Jamf, Kandji, and Mosyle. macOS native.
The problem
On-call rotations are built into SRE and DevOps roles, which means your engineers are routinely pulled from sleep to triage incidents in the middle of the night (on-call requirements in DevOps roles). That is precisely when human judgment is most fragile. Cognitive performance, attention, and reaction time decline significantly on overnight work, and error risk runs about 28 percent higher on the night shift than the day shift (Journal of Circadian Rhythms). A meta-analysis confirms measurably worse working memory, processing speed, and cognitive control in shift workers (BMJ Occupational and Environmental Medicine).
A cold, blue-heavy screen at 3 a.m. makes a hard moment harder: it jolts the eyes, fights the body's wind-down, and makes getting back to sleep afterward worse.
+28%
higher error risk on the night shift vs day.
Source: Journal of Circadian Rhythms55%
melatonin suppression from evening and night screen light.
Source: PNASWorse
working memory, attention, and processing speed in shift workers.
Source: BMJ OEM meta-analysisThe solution
ScreenMercy keeps each on-call engineer's display warm through the overnight window, automatically, based on the real sun above their location. When the page fires, the screen is already easy on the eyes. When the incident is resolved, the warmer light helps them wind back down. It runs silently in the menu bar with nothing to manage.
On-call does not run on a fixed clock, and neither does ScreenMercy. It tracks the actual sun, so the screen is right whenever the page comes.
A warm screen during a 3 a.m. incident is gentler on the body's clock than a blast of cold blue, which can make getting back to sleep even harder.
IT deploys it to every engineer in the rotation at once. No one has to remember to turn it on the night they are on call.
The ROI
On-call mistakes are among the most expensive an engineering org can make: a wrong call during an incident can extend an outage, compound customer impact, and burn hours of cleanup. ScreenMercy runs about $2 a month per seat. Set against the cost of a single fatigue-driven misstep at 3 a.m., or the cost of losing a burned-out senior SRE, the math is not close.
"The worst time to fight a cold blue screen is the moment a production incident wakes you up."
Trust and privacy
ScreenMercy makes zero outbound network calls, collects no data, and creates no accounts. For the security-conscious teams who tend to run on-call, that turns a long questionnaire into a one-page pass.
Zero telemetry
No accounts, ever
On-device only
Apple notarized
Pricing
One quiet utility for the whole team. Compare plans by monthly seat cost, then pick monthly or annual billing.
2 to 9 seats
$2 /seat/mo
per seat / month, billed annually at $24 / seat / year
Small teams buying on a card
Buy now10 to 49 seats
$1.67 /seat/mo
per seat / month, billed annually at $20 / seat / year
Growing engineering or ops teams
Buy now50 to 199 seats
$1.33 /seat/mo
per seat / month, billed annually at $16 / seat / year
Department or company rollouts
Request a quote200+ seats
$1-$1.17 /seat/mo
per seat / month, billed annually at $12-$14 / seat / year
Fleet-wide rollout, invoice / purchase order, and security review support
Contact usStart a free 14-day pilot for your on-call rotation. No credit card, no commitment. If the next incident does not feel a little less harsh, walk away.
No credit card required. Cancel anytime.
FAQ
Night Shift is a basic built-in feature with a limited warmth range, limited scheduling, no team deployment story, and no per-display or per-app control. Some users also report that it behaves inconsistently after sleep, updates, or display changes. ScreenMercy is purpose-built for deeper screen comfort: real sun-position timing using optional macOS Location Services or manually entered coordinates, richer controls, and a team-ready deployment path.
Push the signed, notarized package through Jamf, Kandji, Mosyle, Intune, or another MDM that supports macOS package deployment. A single license key or pre-activation file covers the team. Most fleets are live in under an afternoon.
None. There are no accounts, no analytics, and no outbound network calls. Everything runs on the device.
Evening screen light has been shown to suppress melatonin and delay sleep onset (PNAS). ScreenMercy reduces that evening light in step with the natural day, which supports the body's normal wind-down. We are careful to make sleep and circadian claims, which the science supports, and not eye-disease claims, which it does not.
Yes. IT sets fleet-wide defaults through a managed configuration profile, so your team gets a screen that works correctly from the first launch.
No. Auto-location is optional. Employees can type coordinates manually and never grant macOS Location Services permission. Either way, location is only used locally for solar calculations and is not transmitted by the product app.
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