Langy is a Mac OS X app which helps you changing your keyboard language per app. You can select which language to use for your desired apps, and a default language to fallback and Langy will automatically change it on focus.
See it in action!
We are happy to help.
Help us do more stuff!
Langy is a free app we made to learn. We enjoy doing this and will like to do more stuff.
Everything from a shout on Twitter, a star on Github or donating what you want here helps a lot!