What I usually do is to have a "language button" on the initial page.
Tapping on it brings user to the app's settings, where user can select the preferred language.
That may be better than trying to force to English. In fact, if user has not selected English in the list of "Preferred Languages", that may just mean he/she does not speak English. Defaulting to English will not be good as he/she may prefer French or Italian.
Topic:
App & System Services
SubTopic:
Internationalization
Tags: