Lingua Boost’s website sells downloadable volumes of phrasebook-like lessons that teach everyday phrases in context. The lessons are about 10 minutes long; they are narrated by native speakers and focus on vocabulary within a specific topic. Although each lesson seems to contain something that resembles a dialogue, every phrase is spoken by the same person. Additionally, many of the lessons initially appear to be dialogues, but end up as a list of sentences. For example, the first line of a lesson might be, “what do you like to do?” followed by a series of statements such as “I like to read books,” or “I like to go swimming.”
Furthermore, for languages that have more difficult pronunciation, such as Russian and Hindi, the lessons do not break down pronunciation. In Pimsleur, for example, they use an excellent technique of working backwards with each syllable in a word. In Lingua Boost, it seems that you are expected to just listen and gradually catch on, even from the absolute beginner level.
Finally, each volume must be purchased separately, but you can test out the first 5 lessons for free on their website.
If you’re looking for a similar course that breaks down pronunciation, has interactive activities and helps you learn full dialogues in context, check out Pimsleur’s subscription plan.