Compare software

imo vs Telegram: catalog facts
imo	Telegram
Free Free to download and use.	Free The apps are free to download and use.
Windows, macOS, Android, iOS	Windows, macOS, Linux, Android, iOS
Audio and video calls on mobile and desktop Built-in message translation	Chats sync across phones and desktop computers Large groups, channels and bot platform
Proprietary and closed source Limited technical detail published about its encryption	Relies on Telegram's central servers Apps are open source but the server software is not published
Downloadable app	Downloadable app, Hosted service
Closed source	Open source
License: Proprietary	License: GPL-3.0
Not stated if an account is needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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