WeChat

WhatsApp is a cross-platform messaging and voice/video calling application owned by Meta Platforms. It provides text messaging, group chats, voice and video calls, file sharing, and end-to-end encryption for communications. The service is available on iOS, Android, Windows, macOS and via a web client.

FaceTime is Apple's proprietary audio and video calling service built into iOS, iPadOS and macOS that provides one-to-one and group internet voice and video calls. It is developed and maintained by Apple Inc.

TikTok Shop is an in-app e-commerce service operated by TikTok (ByteDance) that enables merchants and creators to list and sell products directly within the TikTok app, including product pages, checkout and live-stream shopping features. It was rolled out in multiple markets from 2020 onward and integrates commerce with TikTok's creator and advertising ecosystem.

Telegram is a cloud-based instant messaging service developed by Telegram Messenger LLP and founded by Pavel and Nikolai Durov. It offers text, voice and video messaging, group chats, channels and a bot API, with optional end-to-end encryption available in "secret chats."