Jongla for Windows Phone is available in 15 languages, and your device’s language will be pre-selected. So if your phone default language is English, then Jongla’s language will also be in English by default.
How to set your language setting? Go to your phone setting, tap on language & input and set your preferred language there.
Complete list of languages on Windows Phone
English, Chinese Simplified, Finnish, French, German, Indonesian, Italian, Malay, Portuguese (Brazil), Russian, Spanish (Spain), Swedish, Thai, Turkish, Vietnamese.
Let us know if you need more assistance: support@Jongla.com