How can I master a skill?

[michistrikis]

When I complete the levels in a skill it appears only to be learned. I never have the option to translate or as many levels in a skill to master it. Can anyone help me please? Mostly I use my iphone app.

[kristinemc]

It sounds like you have the new version of Duolingo. Everyone will have the new version soon. Here's some more info about all the updates from the Duolingo founder, Luis: http://duolingo.com/#/comment/180620