Klassly
Klassroom SAS
ClassIn
EEO Education Ltd.
Google Classroom
Google LLC
ClassDojo
MasterClass: Become More You
MasterClass Inc.
Preply: 語言學習應用程式、口語、聽力、單字練習
Preply Inc.
ClassLight
Classera Inc.
Classting
Classting Inc.
Classify — School Planner
Principal Technologies Ltd
Anki Pro: Study Flashcards
Vedas Apps Ltd