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QQ vs Viber: catalog facts
QQ	Viber
Free The app is offered as a download from the official site.	Free Free to download and use for messages and calls.
macOS	Android
Large existing user base in China Combines chat with interest communities	Voice and video calls plus group chats Chats sync between mobile and desktop
Interface and site are primarily in Chinese Proprietary service run by Tencent	Proprietary and centrally run Communities and stickers add clutter for people who only want chat
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 October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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