I'm a fan of Glossika and recommend it whenever I can. On the one hand, I don't think of it as a child's app; but on the other hand, it uses the kind of repeti

I'm a fan of Glossika and recommend it whenever I can. On the one hand, I don't think of it as a child's app; but on the other hand, it uses the kind of repetition and speaking practice through which all children learn languages.