Signal is the privacy gold standard, but its phone number requirement, dropped SMS support, and lack of group discovery leave gaps. These alternatives push privacy even further or add the features Signal won’t.
Each app below addresses a specific gap in Signal's offering. We picked them based on real user review patterns and feature differentiation.
Threema solves Signal’s biggest anonymity gap: it doesn’t require a phone number or email to register. Based in Switzerland under strict privacy laws, fully open-source, and regularly audited. Supports polls, agree/disagree reactions, and encrypted file sharing up to 100 MB.
Explore Threema data →Takes privacy further than Signal by routing messages through a decentralized onion network, hiding IP addresses and collecting zero metadata. No phone number or email required to sign up. Over 1 million monthly active users. Swiss jurisdiction since November 2024.
Explore Session data →End-to-end encrypted messaging, voice, and video calls with a polished interface. Supports registration with just an email — no phone number needed. Available on all platforms including a full web client. Also offers enterprise plans with compliance features for businesses.
Explore Wire data →Built on the Matrix protocol, Element offers E2E encryption, self-hosting, and federation across servers. Unlike Signal’s centralized model, Matrix can’t be shut down by blocking a single server — making it censorship-resistant by design. Supports large public rooms for community building.
Explore Element data →Offers features Signal lacks: public groups, channels with unlimited subscribers, usernames for discovery, bots, and file sharing up to 2 GB. Secret Chats offer E2E encryption. The trade-off is that regular chats are only server-side encrypted, not end-to-end.
Explore Telegram data →The only messenger with no user identifiers at all — not even random numbers. Uses temporary anonymous pairwise addresses for each conversation. Fully open-source and audited. Makes Signal look moderate by comparison on the privacy spectrum.
Explore SimpleX Chat data →We identified these alternatives by analyzing privacy-focused app reviews and user migration patterns. The most common reasons users supplement or leave Signal are the phone number requirement, removed SMS support, and limited community features.
Session and SimpleX Chat are both more private than Signal. Session routes messages through an onion network and requires no phone number. SimpleX goes further — it has no user identifiers at all, making correlation attacks nearly impossible. Threema also avoids requiring a phone number and is Swiss-audited.
Signal removed SMS/MMS in early 2023 to avoid giving users a false sense of security — SMS messages were never encrypted and could be intercepted. The downside is that Signal now only works for communicating with other Signal users, which limits adoption.
Element (Matrix) is the most censorship-resistant option because its federated design means there’s no single server to block. Session’s onion routing also helps bypass censorship. Briar works over Tor, Wi-Fi, and Bluetooth for extreme scenarios.
We analyze App Store metadata, review patterns, and user migration data to surface the best alternatives objectively — no sponsored placements or affiliate rankings.
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