HelloTalk——和全球语伴无门槛练外语
HelloTalk Learn Languages App
HelloTalk English Talk场景化学英语口语
HelloTalk Limited
Hello - Talk, Chat & Meet
Hello Entertainment
Hello Talk - free video chat
hello, Inc.
Tandem语言交换:免费学习英语 韩语 西班牙语
Tripod Technology GmbH
希洛卡语言交换
HiLokal
Interpals: Friends & Languages
InterPals
HiNative - 语言学习
Lang-8, inc
Slowly - 结交笔友平台
Slowly Communications Limited
SewaYou - 语言交换 | 练习语言口语日语英语韩语
SewaYou Inc.