iOS: how can I disable calendar alerts?
Solution 1:
No, you can't disable pop-up reminders globally. You can turn off an alert by accessing the event properties in the Calendar app, but then it will be disabled in Google Agenda too.
Solution 2:
Settings > Notifications > Calendar Here you can select the types of notifications you want for all types of Calendar events, eg you can turn on or off banner pop-ups, sounds, or both, etc.