Imagine that you have a friend who tries to teach you Spanish. This is what Learn Spanish from scratch is. You will be explained everything in detail, step by step. In general, only one new word is added per new sentence. Grammar is always explained in its actual use, not by abstract tables. And if you want, you can record the sentences in your own voice, some studies imply that listening to your own voice helps you memorize better.
The idea is to use the power of the brain to pick up patterns and memorize them without much effort. There is a reason why every human being speaks a language, and that is that learning a language doesn't require special skills. It just requires the right kind of practice.
This is the full version of Spanish from scratch and it currently has 5000 sentences, using around 2800 words from the spoken vocabulary (95% of words used in conversations)