New events appear on their own, and changed times update themselves, so you stop having to check. Nothing to install, no account, and you can remove it any time.
https://feed.ministrycalendar.org/stockton/all-saints--twain-harte.ics
Print it, pin it up, or text the link. Scanning opens this page.
https://ministrycalendar.org/stockton/all-saints--twain-harte/