Differences between calendar apps

A subscribed calendar feed is a pull — your calendar app checks the link on its own schedule, Tiebrake can't push you an instant notification when something changes. How often that check happens is entirely up to your calendar app and phone/computer's settings, not something Tiebrake controls or can promise: expect somewhere in the range of every 12–24 hours, not real time, but the exact interval varies by app and platform.

What you can rely on, regardless of which calendar app you use:

• A reschedule updates the existing event, not a duplicate. Every match keeps a stable identity across changes, so when your admin moves a match's time or court, your calendar app should update that same event in place the next time it syncs — not leave you with two entries.
• A cancelled match stays in your calendar, marked cancelled, rather than silently vanishing. Depending on your calendar app, that usually shows as struck-through or greyed out.
• A reminder is included for each upcoming match — one day before, by default — so you'll get your calendar app's normal notification even if you haven't checked the app itself.
• Times are set in the season's actual timezone, not a raw UTC offset, so daylight-saving changes are handled correctly and the time you see is the real local match time.

If your calendar looks out of date, the fix is almost never re-subscribing — it's just waiting for your calendar app's next scheduled check, or manually forcing a refresh if your app offers one.