Rated 4 out of 5 stars

by Oly on Oct. 18, 2017 ·

The addon is really great.
The synchro still working if you create an event from Thunderbird (but not in the other way anymore).
[Myconfig: Thunderbird 52.4.0 on Linux + SPlanner on Android 5.0.1]

This review is for a previous version of the add-on (3.3).