MacStayOn
Close the lid. Keep the work running.
Reliable, task-aware Mac sessions for Codex, ChatGPT, development servers, exports, and other work that should finish without keeping your display awake.
MacStayOn
Session active
SESSION
Auto mode
ChatGPT coding task
QUEUE
2 tasks protected
Handoff window ready
SAFEGUARDS
All clear
Battery 82% · Thermal nominal
Simple by design
Start a protected session in seconds
Choose the work
Select an app-aware session, a timer, or a session you stop manually.
Set your limits
Choose display, battery, and thermal behaviour without changing unrelated Mac settings.
Close the lid
MacStayOn watches the session, records decisions, and releases its assertion when the work is done.
Built for reliability
Control what stays awake and why
MacStayOn protects the work you select. It does not freeze unrelated apps or terminate system processes.
Lid-closed sessions
Keep active work running when the lid closes, while allowing the display to sleep normally.
Task-aware Auto mode
Watch supported apps for active and queued work, then finish the session when they are genuinely waiting for you.
Battery safeguards
Choose a battery cutoff so background work never consumes more charge than you intended.
Thermal protection
Respond to macOS thermal pressure and release only MacStayOn's own power assertion when limits are reached.
Health and audit history
See the current assertion, recent decisions, previous-run status, and the reason a session stopped.
Native and efficient
A native Swift menu-bar utility with no permanent Node server, browser runtime, or polling-heavy dashboard.
Annual licences
One Mac or three
Deactivate a licence from an old Mac and move it to a replacement at any time.
Subscriptions renew annually until cancelled. Applicable taxes are calculated at checkout.