Learn 101 is almost identical to iLanguages, but neither of them seem to be very helpful; they have the same native speaker audio files, languages, and mostly identical ‘lesson’ layouts. The main differences are that Learn 101 seems to have added some grammar explanations and reformatted a bit, while iLanguages seems to have added some extra phrases.
Since every one of the languages’ “lessons” has the same format, including the grammar section, you will learn how to say ‘and’, ‘but’, and ‘or’, in 107 languages, but you will not learn where these types of words fit within a specific language’s sentence structure. Although there are examples of various grammatical structures, the explanations for these structures are also identical for every language, which, practically speaking, doesn’t seem plausible.
This site could be useful if you want to hear native speakers pronounce basic words in less-common languages, or if you want to look up the IPA symbols of a less-common language’s alphabet — otherwise, you’re probably better off making flashcards yourself on Anki, or trying one of the hundreds of other resources we recommend on this site.