UMBERA
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Comparison · As of November 2026

Umbera, Signal, Telegram, WhatsApp and Session compared

Sign-up, encryption, metadata, source code, channels, disappearing messages and price, side by side. Each cell is backed by the project’s official documentation; open a comparison for the details and links.

01

At a glance

UmberaSignalTelegramWhatsAppSession
Phone number to sign upUmberaNot required.SignalRequired.TelegramRequired.WhatsAppRequired.SessionNot required.
End-to-end encryption, one-to-one chatsUmberaYes, by default.SignalYes, by default.TelegramOnly in Secret Chats.WhatsAppYes, by default.SessionYes, by default.
End-to-end encryption, groupsUmberaYes, by default.SignalYes, by default.TelegramNo.WhatsAppYes, by default.SessionYes, by default.
Post-quantum protectionUmberaMessages: yes. Calls: no.SignalYes, for messages.TelegramNot documented.WhatsAppNot documented.SessionNot yet.
Sender and metadataUmberaSender sealed inside the ciphertext.SignalSealed sender.TelegramNot documented.WhatsAppNot documented.SessionOnion routing.
Open sourceUmberaCryptographic core only.SignalYes.TelegramApps: yes. Server: no.WhatsAppNo.SessionYes.
Built-in TorUmberaYes.SignalNot documented.TelegramNot documented.WhatsAppNot documented.SessionNo, its own network.
Channels and communitiesUmberaYes, Communities.SignalNot documented.TelegramYes, channels.WhatsAppYes, Channels.SessionYes, Communities.
Disappearing messagesUmberaIn one-to-one chats.SignalYes.TelegramPartly.WhatsAppYes.SessionYes.
PriceUmberaFree plan and a subscription.SignalFree.TelegramFree, optional Premium.WhatsAppFree.SessionFree.
Umbera · SignalUmbera · TelegramUmbera · WhatsAppUmbera · Session
02

Sources

Official pages of each project, checked on 7 November 2026.

Signal

Telegram

WhatsApp

Session

Umbera

Umbera’s own facts come from its app and server code; the open part can be checked here:

“Not documented” means we found no such feature in the official sources listed on this page. It doesn’t mean the feature can’t exist.

Facts change — tell us at info@umbera.app if something is outdated.

Install Umbera

A free trial with everything open, then a few contacts stay free for good. No card required.

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