You can select English (or many other languages) as your default. In the upper corner, click on the 3 Horizontal Lines to display the Menu. 0_1504374597528_Click for Menu.png
When you click the menu icon you get:
0_1504374642347_Click on Settings.png
Click on Settings to get:
0_1504374683177_Click for Advanced Settings.png
Near the bottom, click on Advanced Settings to make your selections.
0_1504374718330_Select Settings & Language.png
You can set your preferred setting at the top and scroll down to choose you preferred language.