Transparent Languages offers a holistic perspective on language learning & a ton of resources in order to learn likely every single vocabulary word in existence. There are opportunities to engage with specific aspects of language related to specific vocations or areas where you would need to know very niche language.

Transparent languages has a lesson for everything, and I don't think I'm exaggerating. If there's a topic in another language that'd you'd like to learn a plethora of minute details about, Transparent Languages is the correct software for you. It has tons of in-depth lessons on niche topics in different languages. It's quite comprehensive, and offers a variety of teaching methods (from writing, to speaking, to reading, etc).

I like the variety of exercise types that utilize different aspects of language learning styles. It also incorporates speaking exercises that allow you to practice pronunciation.