Revolution Prep vs Riiid
US online tutoring company using full-time salaried tutors for SAT/ACT prep and K-12 academic subjects. South Korean AI edtech whose Santa app gives adaptive, AI-tutor TOEIC/TOEFL prep (rebranded Socra AI). Below we put Revolution Prep and Riiid side by side — model, fees, subjects, pricing, founding year and the countries they serve — to help you choose the right online tutoring platform.
| Attribute | Revolution Prep revolutionprep.com | Riiid riiid.com |
|---|---|---|
| Type | Test Prep Tutoring | Test Prep Tutoring |
| Model | Managed / agency | Subscription |
| Founded | 2002 | 2014 |
| Headquarters | Santa Monica, California, USA | Seoul, South Korea |
| Regions served | United States (national, online) | Korea, Japan, Taiwan; partnerships into US, LatAm, Middle East |
| Subjects | SAT, ACT, PSAT, SSAT, ISEE, AP; plus 100+ K-12 academic subjects | TOEIC/TOEFL English test prep (AI-driven) |
| Pricing | Group test prep from $499; academic tutoring from $990; private test prep from $1,990 | Santa app ~$16.49/mo or ~$103.99/yr; premium passes $149.99-$239.99 |
| Scale | Helped 1M+ families; <2% of tutor applicants hired; backed by Apax | ~$250M raised (incl. $175M SoftBank); Santa 5M+ downloads; rebranded Socra AI (2025) |
| Status | Active | Active |