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Threema vs WeChat: catalog facts
Threema	WeChat
Paid A one-time purchase is required. Business plans are separate.	Free Free to download and use.
Windows, macOS, Linux, Android, iOS, Web	Windows, macOS, Android, iOS
No phone number or email required; the ID is random Apps are open source and the company is based in Switzerland	Very large user base, especially in China Chat, calls, social feed and payments in one app
A one-time purchase is required for each platform Smaller user base than the mainstream encrypted messengers	Closed source and run by a single company Many features go beyond messaging, which makes the app large
Downloadable app	Downloadable app
Open source	Closed source
License: AGPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.