KingdomOS is the autonomous operating system behind The Kingdom of English. Growth, analytics, outreach, and operations, handled while you focus on your students.
You built an incredible ESL platform from scratch. Now let the operations run themselves so you can keep building what matters.
Track teacher signups, student engagement, exercise completion rates, and revenue. Know exactly what is working and what needs attention.
Find and connect with ESL/EFL teachers who need a practice platform. Personalized cold outreach that actually converts.
Monitor Ellii, ESL Brains, Kahoot, and other platforms. Know their pricing changes, new features, and positioning before they matter.
Manage exercise creation, track content gaps, and prioritize what to build next based on student performance data.
Over 10 years of teaching English in Austria. Thousands of students. And one persistent frustration: the tools available to ESL teachers were either too corporate, too expensive, or too disconnected from real classroom needs.
So David Satler did what builders do. He taught himself programming. He dove deep into AI. He launched the first version in January 2023 and tested it with his own students the same week.
The Kingdom of English is not another EdTech product designed by people who have never set foot in a classroom. It is built by someone who grades papers, manages classes, and watches students struggle with the same grammar rules every semester.
The Kingdom of English, powered by KingdomOS. Making ESL practice engaging, intelligent, and built for how teachers actually work.