iPhone Screenshots


Synchronize your contacts and events between your iPhone and Mozilla Thunderbird, Lightning and Sunbird on your PC. Keep your information up to date automatically: every modification on any device is automatically transferred to the other device.

Keep your data private: your personal data is not stored in the cloud. It is directly synchronized between your device and your desktop computer through a secure connection and never goes through any third-party server.

BirdieSync supports: contact photos, multiple address books and calendars, contact groups and categories, recurring events and alarms, ICS, calDAV, WCAP, Google Calendar types.

Note: this app requires BirdieSync on your PC (19.95 €). You can download a fully-functional version and try it out free for 21 days (only Windows is supported).

What’s New


On iOS 14.5 or later, finding BirdieSync server or resolving the server hostname could fail while trying to connect.
At first time, a permission popup window will now be displayed asking authorization to access to local network.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

NPouliquen ,

Great App to manage multiple calendars and phone books!

We have iphones and Samsung Galaxy in our house and this manages both just fine.

ShrunkAgain ,

Great for Address Book syncing with Thunderbird

Birdie sync is easy and quick syncing of the iPhone with Thunderbird address book. I hope they soon add syncing of appointments and tasks as well with Lightning.

djamesnm ,

This app crashes Thunderbird

Really, not a well developed or thought through application, upon commencement of sync within Thunderbird, this causes the Mail Client to crash.
Latest update of Thunderbird is on the Windows 7 64 bit machine.
Disappointed, but it was free.
so it was easy to delete from the system.

App Privacy

The developer, Callicia, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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