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Viber vs Telegram Desktop: catalog facts
Viber	Telegram Desktop
Free Free to download and use for messages and calls.	Freemium Free to use. Telegram Premium is an optional subscription for larger uploads, faster…
Android	Windows, macOS, Linux
Voice and video calls plus group chats Chats sync between mobile and desktop	Official client with published source and build instructions Cloud chats sync instantly across every device you sign in on
Proprietary and centrally run Communities and stickers add clutter for people who only want chat	Ordinary chats are not end-to-end encrypted and Telegram holds the keys Secret chats are not available in the desktop client
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	Account needed
Needs internet	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

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