Educative

I feel that this site has very, very superficial tutorials. The guidance on how to build applications is very sketchy, and you end up wasting time online to find solutions because they do not provide enough information. If you need support, it is very difficult to obtain, you can 'ask a question', which opens up a forum. The tool they give you to ask a question is just atrocious, almost impossible to use. I have definitely wasted my money.

Cons: sometimes very superficial and not informative tutorials, many typos, playgrounds are too simple, quizzes are made like as just to be, mistakes in the given information. From my perspective you can find much better and free of charge articles on the internet. So, it isn't a good value for money, considering that much money they're asking for. Pros: easy to use, provides all relevant courses in one place, good coverage of topics.

High quality, lucid, and spot on courses for any software engineer preparing for interviews. Grokking the System Design Interview course is unanimously attested as the top course by almost anyone I have spoken to. I think the 'Grokking the Coding Interview: Patterns for Coding Questions' course is unique in its own way. You get to learn some common patterns that will help you in identifying the approach you need to take for any problem at hand. Overall, a great compendium of courses - just what the doctor ordered.

Educative.io subscription form does not clearly says that they are going to automatically charge you. I used it for the a month and then stopped, they continued to charge me 40$ per each month till I noticed it. I'm ok to pay for the first month, but 3 other transactions has to be returned, obviously they do not want to return the money and that fraud practice of steeling people money they call "subscription refund policy". So be careful with them.

Very relevant courses