Encrypted foreign messengers are the category China has been least willing to leave alone, and the position has hardened rather than softened.
What is blocked#
WhatsApp, Signal, Telegram, Facebook Messenger and Instagram's DMs are all unreachable on a mainland Chinese connection. Telegram went first, in 2015; WhatsApp was fully cut off in 2017.
In April 2024 the Cyberspace Administration of China ordered Apple to remove WhatsApp, Threads, Signal and Telegram from its Chinese App Store, on national-security grounds, and Apple complied — saying it is obliged to follow the law in the countries where it operates even when it disagrees. So a phone signed in to a Chinese Apple ID cannot install them at all, and neither can an Android phone that has lost the Play Store.
Install every app you want before you get on the plane. This is the single most common preventable mistake on this whole subject.
What still reaches you#
A foreign SIM roaming into China usually does, because the traffic exits through your home carrier's network rather than onto a Chinese one. The same goes for a travel eSIM that routes internationally — though whether any given eSIM does depends on the provider's routing, not on the word eSIM.
A VPN will generally work, with the usual caveat that services get targeted and speeds fall around politically sensitive dates. Install two from different providers before arriving.
A Chinese SIM will not. It sits behind the national filter by design, so a local SIM plus no VPN means no WhatsApp at all.
Use WeChat, and set it up early#
WeChat is not merely the local alternative to WhatsApp — it is how China communicates, and a visitor without it is repeatedly the awkward person at the counter. Guides, drivers, hotel staff, tour operators and the person you met at dinner will all expect to add you on WeChat rather than take a phone number.
The friction is registration. New accounts sometimes require an existing WeChat user to scan a code and vouch for you, which is easy at home and awkward on arrival. Register while you still have someone nearby who can do it.
Practical shape of a trip#
- Family at home — tell them the reply may be slow and route it through iMessage, Outlook or WeChat rather than WhatsApp, so nobody panics on day two.
- People in China — WeChat, without exception.
- Group chats you cannot move — check them over the VPN once a day rather than expecting live notifications.
Voice and video calls on WhatsApp do work over roaming or a VPN, so this is a routing problem rather than a total blackout. It just is not something to discover after landing.
For the full picture of what the firewall reaches and which apps to install, see the guide to internet, VPNs and apps in China; for the rest of Google's estate, is Google blocked in China?