When it comes time to learn a new language on a mobile device (what, you haven't?), Duolingo is the first that comes to mind. But let's say you've completed everything that app has to offer - what then? Lingua.ly has arrived for Android, and it's ready to help newcomers learn any of over twenty languages.
Similar focus aside, Lingua.ly takes a different approach to teaching than Duolingo. This app encourages you to copy and paste words to build up your vocabulary over time, prompting you to select your native language and the one you're trying to learn. It then turns these words into flash cards or inserts them into other types of games for practice. The app will also pull down articles from across the web that contain these words, so you can see them in their natural context. This, its designers feel, is ultimately the best way to learn.
These are early days, and the app does have some hiccups to be aware of. Google+ sign-in isn't implemented correctly, so it prompts you to log in rather than use the authenticated device session. Facebook login fed us an error once, but it proceeded to work properly after that.
The app is free to use, so there's little risk in giving it a try. Link's available in the widget below.