When you update your Apple device to iOS 7, you may need to adjust your Subscribed Calendar settings in order to see your Hebcal.com calendars.
For some calendars, iOS7 defaults to SSL on, which does not work with Hebcal.com. Resetting the calendar to SSL off will cause the calendar to show up correctly again.
- Launch the Settings app
- Touch “Mail, Contacts, Calendars“
- Touch “Subscribed Calendars“
- Touch the Hebcal calendar(s)
- Under “Subscribed Calendar Information”, set “Use SSL” to “OFF“
If the screen you see next looks like the following, be sure to set the “Use SSL” setting to “OFF”