They don't explain rules. They try to classically condition you without explaining why you would ever synthesize a word or phrase that way.
It becomes more apparent when you realize these apps are not smart. They were novel at one point, and maybe you can pick up a phrase to catch a native speaker off guard.
Duolingo is using humans to translate web content that algorithms are unsure about. This is the same founder of reCaptcha, who uses captcha's to use humans to tell robots about what the robots are unsure of.
Memrise, on the other hand, just takes the "87% most used phrases" and tries to get you to memorize the.
They have zero holistic approach to any of the languages they offer. You will never learn tense, language-specific concepts and rules, idioms that break all the rules, or whatever locals just say.
It becomes more apparent when you realize these apps are not smart. They were novel at one point, and maybe you can pick up a phrase to catch a native speaker off guard.
Duolingo is using humans to translate web content that algorithms are unsure about. This is the same founder of reCaptcha, who uses captcha's to use humans to tell robots about what the robots are unsure of.
Memrise, on the other hand, just takes the "87% most used phrases" and tries to get you to memorize the.
They have zero holistic approach to any of the languages they offer. You will never learn tense, language-specific concepts and rules, idioms that break all the rules, or whatever locals just say.