Considering that paper-only learning materials, which don't have smart learning functions to explain, engage, and reinforce concepts, cost around 40,000 KRW per subject, Wink, which provides the most smart learning and paper materials, is a highly cost-effective option. You can study the most essential subjects for preschoolers and elementary students—Korean, Math, English, Phonics, and elementary school subjects—with 60-80 types of workbooks and books annually, along with a patented dedicated learning device filled with high-quality content, all at a more affordable price than paper-only materials. . Pricing guidance is provided during the trial; select a package that fits your needs after consulting a teacher.