TOEFL · ACADEMY PLATFORM
One platform,
two engines.
UPDATED-TOEFL and Lingo-X.
K-PRIME runs two focused programs side by side. Enter the TOEFL test engine, or jump into Lingo-X for daily vocab missions and academy workflows.
Already have an account? Log in
SEEK TRUTH. MASTER LEARNING.
UPDATED-TOEFL for test practice, Lingo-X for daily vocab systems and academy ops.
Programs for every learner
Two programs, one account. Pick a lane, or run both.
UPDATED-TOEFL
Adaptive Reading and Listening practice with clear analytics.
Lingo-X Vocabulary
Daily missions: synonyms, word forms, blanks, collocations.
Mock Tests
Timed sets, auto scoring, teacher-friendly reports.
Academy Dashboard
Assign, track, analyze. Fast operations for 학원 teachers.
Grammar and Structure
Structured training for middle and high school learners.
Vocabulary Missions (Advanced)
Spaced repetition, weak-word queue, and perk-based rhythm.
TEACHERS
Differentiate your classroom and engage every student.
Assign sets, see results, and focus on coaching. Use UPDATED-TOEFL for test practice and Lingo-X for vocab systems and daily flow.
- Reports by skill, passage, and question type
- Auto-graded Reading and Listening with explanations
- Homework tracking and class dashboards
CLASS SNAPSHOT
See weak areas, then assign targeted practice in one click.
LEARNERS AND STUDENTS
You can learn anything.
Practice test skills in UPDATED-TOEFL, and build daily vocab power in Lingo-X.
- Adaptive difficulty stays just above comfort zone
- Instant explanations in clear, student-friendly English
- Daily rhythm with missions and progress tracking
TODAY'S MISSION
Complete 1 set in UPDATED-TOEFL and 1 mission in Lingo-X.
Keep your streak alive and build momentum.
“I used to guess my way through TOEFL Reading. With K-PRIME, I can finally see why I got each question wrong and what to fix next.”
JIHO · HIGH SCHOOL STUDENT