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Private Messengers · 3 Spec Tables · 6 min read

Wonek vs Threema: QUIC P2P Video, Screen Sharing, PTT & CRDT Docs Compared

Threema is a respected Swiss paid messenger focused on minimalist 1:1 and small-group privacy, though multi-device desktop/iPad independence, large file transfers, and rich collaboration remain constrained compared to a modern MLS + QUIC workspace.

TL;DR · Direct Answer & Honest Verdict

Pick Threema today if you want a mature one-time-purchase anonymous ID messenger across Android and iOS. Request early access to Wonek when you want true independent multi-device Apple sync (iPhone, iPad, Mac, Apple Watch) powered by IETF MLS (RFC 9420), high-success direct QUIC P2P voice/video and screen sharing, Push-to-Talk, chunk-resumable multi-GB file transfers, CRDT docs, and a 5-view shared calendar.

Table 1: Feature & Multi-Device Matrix — Wonek vs Threema
CapabilityWonek (Pre-Release)Threema
Independent Multi-Device SyncNative independent iPhone, iPad, Mac & Watch via MLSHistorically phone-tethered desktop; multi-device still evolving
Screen Sharing (iOS, iPadOS, Mac)Native E2EE screen sharing across iPhone, iPad & MacDesktop-focused call features; limited mobile screen share
Large File TransfersDirect P2P streaming with chunk-level resumptionEncrypted server attachment cap (~50 MB per file)
Push-to-Talk & Apple Watch1:1 & group E2EE PTT + Apple Watch calling/audioAsync voice messages; no standalone Watch calling/PTT
Collaborative Docs & CalendarBuilt-in Yjs/Yrs CRDT docs + 5-view Shared CalendarPolls & text messages only
Personal & Work SeparationPersonal + Work profiles in one appSeparate Threema Work app & license required

True Multi-Device Independence Across iPhone, iPad, Mac & Watch

Apple users expect their Mac and iPad to stay fully functional even if their iPhone is in another room or out of battery. Because Wonek enrolls each Apple device as an authenticated MLS (RFC 9420) leaf via Noise QR, every device sends and receives independently without phone-tethered browser relays.

Breaking Past 50 MB Attachment Caps

Server-relayed messengers cap attachments tightly to protect storage budgets. Wonek streams large files directly device-to-device over QUIC with chunk-level resumption.

Table 2: Cryptography & Transport Architecture
Technical LayerWonekThreema
End-to-End EncryptionIETF MLS (RFC 9420) in Rust core + forward secrecyNaCl / Ibex cryptographic protocol
Group Key EfficiencyO(log N) TreeKEM group key updatesPairwise fan-out encryption to group members
Wire TransportQUIC / WebTransport with mandatory TLS 1.3Custom TCP socket + WebRTC calls
Mobile CGNAT Call RoutingProprietary port-prediction NAT traversal for direct P2PStandard WebRTC ICE/STUN with TURN fallback
European EngineeringArte Soft EOOD (Sofia, Bulgaria — EU)Threema GmbH (Switzerland)

European Privacy Standards Plus Full Collaboration

Built in the EU by Arte Soft EOOD, Wonek extends strict client-side E2EE beyond text into screen sharing, Push-to-Talk, CRDT docs, and shared calendars.

Table 3: Best Fit by Scenario
ScenarioRecommended AppWhy
Phone-number-free ID texting with Android contacts right nowThreemaEstablished cross-platform app live on Android & iOS
Using Mac, iPad & Watch even when your iPhone battery diesWonekFirst-class independent MLS leaf nodes per enrolled Apple device
Transferring multi-GB video & RAW archives without 50 MB capsWonekDirect P2P QUIC streaming with chunk-level resumption
Co-editing private documents & schedules inside the messengerWonekBuilt-in offline-capable CRDT docs and 5-view calendar
Combining Personal & Work contexts without buying two appsWonekIntegrated Personal and Work profile switcher

Frequently Asked Questions

Does my iPhone need to stay online for Wonek on Mac to work?

No. Once enrolled via authenticated Noise QR linking, your Mac and iPad participate directly in Wonek's MLS cryptographic groups.

Does Wonek provide forward secrecy for group chats?

Yes. Wonek uses IETF MLS (RFC 9420), providing both forward secrecy and post-compromise security across 1:1 and group conversations.

Do I need a second app for work chats?

No. Wonek includes dedicated Personal and Work profile contexts inside a single app.

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