It happened! Tefilat Arvit is now in #CalJ.
In the Android edition, it’s in version 2.56: in the side drawer in the Siddur section. In the iPhone edition, it’s in the “Plus” tab in version 3.30.
What is so special about the Tefila in CalJ?
The main advantage is to have it in your pocket, so you could daven while at the office, or stuck at the train station.
Of course there are a lot of good Siddur apps out there (although not many are free of charge). However in CalJ, we know about dates. The Tefila displays the right sections on the right days (Chanuka, 10 Yemei Teshuva, etc.) and only then, as in the example below: