Novakid is an online English school for children founded in 2017 in Silicon Valley (USA) by Max Azarov, Dmitry Malin and Amy Krolevetskaya. Over 2,500 experienced and qualified teachers conduct English lessons for children between the ages of 4 and 12 years old via this interactive online platform. In 2021, over 2.4 million lessons were taught to approximately 70,000 active students. Total customers on the Novakid platform exceed 500,000 users. The Novakid English as a Second Language (ESL) educational program complies with the Common European Framework of Reference for Languages (CEFR) and was developed with the individual interests and ages of the children in mind. Novakid uses gamification and virtual reality technologies in order to create an English-speaking environment and helps children all over the world to learn English in a fun and interesting way. The unique Novakid progress evaluation method (over 1,500 parameters, A/B testing, and other components of a data-driven approach) ensures great results and lets teachers adapt the program for the individual needs and interests of each child.