very good method but the software very unstable

the method is very good and it is a pleasure to learn Chinese with it, however the software (i use integral on line option on iPhone and iPad) is very unstable: application blocks very often and disconnections are frequent which make using the application very annoying. besides as I use only Chinese characters scripts without Pinyin, very often the display field is not suitable for total length of sentence so characters are lacking which is very pity for learning. in Chinese you cannot learn unknown characters without seeing it written down

Moi_cest_alice about Rosetta Stone: Learn Language, v3.2.1