There's no magic cure for tinnitus. If you're one of the millions that suffer from this condition -- a strange ringing or buzzing in the ear -- coping can be a constant struggle. Diapason, a French startup, has distilled some of the best treatments into a mobile app that people can use anywhere. It offers a series of three-to-five minute activities, served through daily collections, that are personalized to the particular frequency or pitch that your ears are struggling with. The activities are basically mini-games that can, the company claims, deliver tangible results in as little as two weeks.