Riiid leads the paradigm shift

in the education market with AI technology.

‘Riiid’ /rēd/
  1. To “remove” or “liberate,” comes from the root word “rid.”
  2. Removing barriers to the three “I”s in learning: ”Inefficiency,” “Inequality,” and “Inconvenience”
  1. AI-based tutor providing highly-customized solutions to users


Through Riiid’s AI technology, individual students gain access to a personalized AI tutor, surpassing human tutors in learning efficiency at a fraction of the cost. We promote individual and institutional access to high-quality education.

Creative Destruction

Riiid’s AI engine is disrupting the global test-prep market.

Global Standard

Riiid will standardize AI technology on the global test-prep market.
SantA.Inside will be the best option for companies’ AI tutor solutions. No computer manufacturer reinvents the CPU by itself, like no automobile company reinvents the wheel.

Paradigm Shift

Riiid is leaving current educational paradigms in the dust. AI tutoring is a substitute, not complimentary. We’ll tell the next generation stories about the old days, when we had workbooks and internet lectures.
Riiid doesn’t just talk about our vision. We lead the paradigm shift with real results.

Riiid brings creative disruption

to the education market through AI technology.

  • Riiid Founded
  • Chosen for 'TIPS (Accelerator Investment-Driven Tech Incubator Program for Startup)'
  • Launched 'Renote!' beta version
  • Won first prize in '2016 K-Global@Beijing' held by the Ministry of Foreign Affairs and KIC China
  • Research paper on machine-learning algorithm accepted to 'NIPS' (top AI conference on a global level)
  • Patent for user customized problem solving algorithm based on machine learning
  • Won first prize in 'Mobile Award Korea 2016' held by Chosun
  • Launched 'Santa for TOEIC!' beta version
  • Won first prize in ‘4th Industrial Revolution Business Competition’ held by the Ministry of Science and ICT
  • Won first prize in 'Smart App Award Korea'
  • Won first place in '2017 KQSI (Korea Quality Satisfaction Index)'
  • Launched 'Santa TOEIC'
  • Won first place in 'Korea Brand Preference Award' held by Hankyung Magazine
  • Featured in App Store / The top paid app in education
  • Won first prize in '2018 Korea Innovation Frontier Award' held by Korean Standards Association
  • 25 Hottest APAC Artificial Intelligence Companies 2018 / CIOAdvisor
  • Launched 'Santa TOEIC Japan'
  • Founded a joint venture in Singapore
  • Won first place '2019 MAX Summit Award - Education'
  • Launched Santa SAT
  • Preliminary Unicorn / Ministry of SMEs and Startups(MSS) and Korea Technology Finance Corporation(KOTEC)
  • Top 10 Edtech Startup in APAC / Education Technology Insights
  • The AI Summit New York 2019
  • Won first prize in '2020 Brilliant People & Brand Awards - Education app'