SkyPhone - Voice & Video Calls
QuadSystem Co., Ltd.
Skype
Skype Insider
Google Voice
Google LLC
Rakuten Viber Messenger
Viber Media S.à r.l.
Signal - 私密消息助手
Signal Foundation
Skype for Business for Android
Microsoft Corporation
简易录音机
Digipom
KakaoTalk : 通讯应用
Kakao Corp.
CallApp: Caller ID & Block
CallApp Caller ID, Call Recorder & Spam Blocker