Calendar on Your Devices
Two-way sync with iPhone, Android and desktop calendar apps
Create an App Password
Every device setup needs three things: a server address, your email, and an app password. Here is where all three come from.
Set Up Calendar Sync in Thunderbird
Thunderbird handles this natively. Four steps, using the same Base URL and app password as Android.
Set Up Calendar Sync on Android
Android needs a small helper app to do two-way calendar sync. Most of the work is granting it the permissions Android would otherwise quietly withdraw...
Set Up Calendar Sync on iPhone or iPad
Five steps in Settings, using the Calendar app already on your device. No app to install, and changes travel both ways.
Sync Zyntro with Your Phone or Computer
Device sync is the only two-way connection Zyntro offers: an event added or changed on either side shows up on the other.
When Device Sync Does Not Work
Nearly every device sync problem is one of three: the wrong form of the server address, a mistyped app password, or Android pausing the sync app.
What Your Device Can and Cannot Change
Your own events are yours to edit from any synced device. A meeting someone else organises is theirs — but your answer to it is yours.
