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Viber vs QQ: catalog facts
Viber	QQ
Free Free to download and use for messages and calls.	Free The app is offered as a download from the official site.
Android	macOS
Voice and video calls plus group chats Chats sync between mobile and desktop	Large existing user base in China Combines chat with interest communities
Proprietary and centrally run Communities and stickers add clutter for people who only want chat	Interface and site are primarily in Chinese Proprietary service run by Tencent
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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