Kaizena is an educational technology company that provides a platform for teachers to give high-quality feedback on student work. The platform allows educators to leave voice messages, create and use rubrics, and integrate with Google Docs to streamline the feedback process. Kaizena serves teachers and students primarily in the K-12 education market, focusing on improving the efficiency and effectiveness of feedback. The business operates on a freemium model, offering basic features for free while charging for premium features and additional functionalities. Revenue is generated through subscription fees paid by schools and individual educators.

Keywords: educational technology, student feedback, voice messages, rubrics, Google Docs integration, K-12 education, freemium model, subscription fees, teacher tools, classroom efficiency.