A free app for Android, by AllDict.

If you are an Igbo person and want to learn English, or if you are a foreigner and want to learn Igbo, you are at the right place. This app is the most useful tool to learn either of the two languages. 

It is an offline dictionary, which means you can use it anywhere and anytime without having to worry about your data. 

The app has all the essential functions you need, like a dictionary: You can search words and get the pronunciation. But it has more: It also has an extensive word trainer, which makes it a perfect learning tool.