Full-Screen Meeting Alerts for Windows (2026)
A Windows toast can vanish from the corner of a busy screen. ScreenSlap covers that screen one minute before the Google Calendar event. The alert stays up for 60 seconds, with sound on by default. ScreenSlap learns the event by polling the Google Calendar you connected. A last-minute edit on that calendar can wait for the next poll. It does not receive an instant push from Google for that event.
The corner toast
The toast is small on the corner of the screen. A stray click can clear it from that corner. A full-screen app can sit over the corner where the toast appears. Do Not Disturb can hide ordinary Windows toasts on that PC. Windows Calendar and Outlook still use a toast for a reminder.
| Feature | ScreenSlap | Windows Calendar | Outlook Notifications |
|---|---|---|---|
| Full-screen alerts | Covers the screen | Toast only | Toast only |
| One-click meeting join | A Join button when the event has a meeting link | Open the event and copy the link | Teams join from the reminder |
| Multi-monitor awareness | The alert opens on every monitor | Toast on the primary display | Toast on the primary display |
| Snooze options | 5 minutes, 10 minutes, or dismiss | Dismiss only | 5 min only |
| Works in fullscreen apps | The alert covers the screen | Hidden when Do Not Disturb is on | Hidden when Do Not Disturb is on |
| Google Calendar support | The connected Google Calendar | Accounts you add in the Calendar app | Outlook calendars |
| Persistent reminders | Stays up for 60 seconds | One-time toast | One-time toast |
| Free for personal use | No time limit on the six tools | Yes | Requires a Microsoft 365 subscription |
Connect the Google Calendar that holds the events you want on screen. The default notice is one minute before the event on that calendar. You still open the meeting link from the calendar or from email. Chrome toasts and the Windows Calendar app are covered in the Google Calendar article.
Sound and the poll
Sound is on by default for the ScreenSlap alert. You can turn that sound off in ScreenSlap. The alert stays up for 60 seconds. ScreenSlap checks the connected Google Calendar every 10 minutes by default. A change you save after the latest check can miss the alert for an event that is about to start.
MeetReady on the same PC
MeetReady checks the camera and the microphone on the same PC. With the early switch turned on, it can open two minutes before the event. The hotkey for that look is Ctrl+Shift+M on Windows. The meeting guide on this site puts ScreenSlap and MeetReady together. The Hand Mirror page is the Mac camera comparison for MeetReady.
In Your Face
In Your Face is a Mac app for a full-screen meeting notice. ScreenSlap is the full-screen notice for a Google Calendar on Windows. When the event includes a meeting link, the alert has a Join button. You can snooze it for 5 minutes or 10 minutes, or dismiss it. The alert opens on every monitor. The In Your Face page compares the Mac app with ScreenSlap.
The installer
PeakFlow is six tools in one Windows installer. You can turn ScreenSlap off without removing the other five tools. Version 1.6.5 of the Windows installer is a 134 MB file. The six tools have no time limit on Windows. A 14-day Pro trial comes included with the PeakFlow download. There is no account and no telemetry on the free tools.
PeakFlow for Windows
Download PeakFlow for Windows to get the full-screen alert in one installer.
Download PeakFlow