iStoria does not use any promo codes. However, the annual plan will save 53% of the value in comparison to the monthly plan. we also have a golden guarantee for the annual plan subscribers.
Where they are guaranteed to improve their language and learn more than 3,000 headwords in English, otherwise, they will be refunded the subscription fees, provided that:
They complete 8 months of continuous learning.
They read 300 chapters.
They take 600 tests of repeated quizzes.