Signal vs Telegram

Updated October 2026 · AppBreakup editorial

Signal

Nonprofit, open-source messenger with end-to-end encryption on every chat and call.

FreeOpen source

Visit Signal Signal profile

Cloud-based messenger known for huge groups, public channels, bots and fast multi-device sync.

Free plan + paid

Visit Telegram Telegram profile

The short answer

Signal is the choice for private conversations, with everything end-to-end encrypted and almost no metadata collected; Telegram is the choice for big communities, channels, bots and seamless multi-device sync. The biggest difference is that Signal encrypts every chat by default, while Telegram's ordinary cloud chats are only encrypted between you and its servers.

Signal or Telegram: our take

Signal and Telegram are often grouped together as WhatsApp alternatives, but they aim at different things. Signal is run by the Signal Foundation, an independent nonprofit, and its apps are open source under AGPL-3.0. Every message, file and call is end-to-end encrypted, always, and it collects almost no metadata: it cannot see your contacts, group names or memberships. There are no ads, no tracking and no paid tier.

Telegram prioritises features and convenience. Chats are stored in its cloud, so they sync instantly across phone, desktop and web without the phone online. Groups can hold up to 200,000 members, channels can broadcast to unlimited subscribers, and a bot platform lets developers build services inside chats. Files up to 2 GB are free to send, or 4 GB with Premium. But only Secret Chats, which are one-to-one and limited to a single device, and calls are end-to-end encrypted. Its client apps are open source with reproducible builds; the server is not.

On devices, Telegram is more flexible: it has a web version and desktop apps that work independently. Signal's desktop apps for Windows, Mac and Linux must be linked to Signal on your phone. Both need a phone number to register, though Signal usernames let you chat without sharing it. Signal covers group chats, calls, stories and disappearing messages well, but it has no channels or bots on Telegram's scale, and its network is smaller, so you may need to persuade friends to join. Telegram's public groups, meanwhile, attract spam and scams.

Choose Signal for personal and sensitive conversations where privacy matters most. Choose Telegram for public communities, news channels, bots and heavy multi-device use, and avoid sharing anything sensitive in its regular chats.

Choose Signal if…

Anyone who wants the strongest mainstream privacy without giving up a familiar chat app
You want open-source software
Everything end-to-end encrypted by default, including groups
Collects almost no metadata

Choose Telegram if…

Communities, channel followers and power users who want every chat synced on every device
You need Web, which Signal doesn't list
Instant sync across phone, desktop and web without the phone online
Very large groups and broadcast channels

What is Signal?

Signal is the messenger privacy experts usually recommend first. Every message, voice note, file and call is end-to-end encrypted with the Signal Protocol, which WhatsApp and others also license, and Signal goes further by collecting almost no metadata: it can't see who your contacts are, what your groups are called or who is in them. It covers the everyday basics well, with group chats, voice and video calls, stories, stickers and disappearing messages, and usernames let you chat without sharing your phone number, though you still need one to register. It is run by the Signal Foundation, a US nonprofit funded by donations, so there are no ads, no tracking and no paid tier. The apps are open source. It runs on Android and iPhone, with desktop apps for Windows, Mac and Linux that link to your phone. Its main weakness is network size: you may need to persuade friends to install it.

What is Telegram?

Telegram stores your chats in its cloud, so the same conversations appear instantly on your phone, tablet, desktop and the web without your phone needing to be online. It is popular for large communities: groups can hold up to 200,000 members and channels can broadcast to unlimited subscribers. A rich bot platform and mini apps let developers build services inside chats. Files up to 2 GB can be shared for free, and an optional Telegram Premium subscription doubles many limits, raises uploads to 4 GB and adds extras such as voice-to-text. The important caveat is encryption: ordinary cloud chats are encrypted between you and Telegram's servers, but only Secret Chats (one-to-one, single device) and calls are end-to-end encrypted. The client apps are open source with reproducible builds, while the server is not. Apps exist for Android, iPhone, Windows, Mac, Linux and browsers. It suits people who value features and convenience over strict privacy.

Side by side

Attribute	Signal	Telegram
Pricing	Free	Free plan + paid
Open source	Yes	No
Self-hostable	No	No
Platforms	Windows, macOS, Linux, iOS, Android	Web, Windows, macOS, Linux, iOS, Android
Best for	Anyone who wants the strongest mainstream privacy without giving up a familiar chat app	Communities, channel followers and power users who want every chat synced on every device
Status	Active	Active

Verified facts, compared

Facts both apps publish, checked on each vendor's own site.

Fact	Signal	Telegram
End-to-end encryption	Always on	Secret Chats and calls only