MackinVIA
Mackin Educational Resources
Libby, by OverDrive
OverDrive, Inc.
Headway: 15-Min Book Summaries
Books Made Easy Corp
33の言語を学習する - Mondly
ATi Studios
Preply - 英語・中国語・韓国語などの外国語レッスン
Preply Inc.
フリマアプリはメルカリ - メルペイのスマホ決済でもっとお得
Mercari, Inc
Gramedia Digital
Gramedia Asri Media
Epic: Kids' Books & Reading
Epic! Creations Inc
Bookshelf
Vital Source Technologies
Bookmate: books & audiobooks
Bookmate