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Comparison · Comms

Session vs Threema

A side-by-side editorial comparison of Session and Threema — release velocity, themes, recent moves, and the top alternatives to consider.

Session vs Threema: at a glance

FeatureSessionThreema
SectorCommsComms
Velocity score0.05.0
Sparks · 30d00
Top themesdecentralized-messaging, funding-crisis, post-quantum-cryptography, paid-tierenterprise-security, secure-messaging, onprem, privacy-positioning
Last editorial update28d ago7d ago
WebsiteVisit →Visit →

What is Session?

Session shipped a protocol rewrite and a paid tier, then went publicly broke — the founder is asking users to bail it out.

Session is simultaneously in its most ambitious technical phase and an open funding crisis. Protocol V2 — re-implementing forward secrecy and layering post-quantum cryptography on top of Session's onion-routed transport — has been announced, and the Session Pro paid tier exited beta planning into a December development update. Then in March, cofounder Chris McCabe published a personal appeal saying the project cannot continue developing without user support, and the public feed has been quiet since.

Read the full Session trajectory →

What is Threema?

Threema leans on enterprise OnPrem features while sharpening its anti-WhatsApp, anti-Signal positioning.

Threema's recent activity splits between shipping and positioning. Concrete product work: a new in-app Survey Feed in the Threema Channel, the Liquid Glass iOS 7.1 redesign, DualLock for OnPrem chats on a lost or stolen device, and screenshot prevention in Threema Work for iOS. Most of the remainder is editorial — #DeleteWhatsAppDay, Zero Trust explainers, commentary on the politician-targeting Signal/WhatsApp attacks — aimed at sharpening the privacy positioning.

Read the full Threema trajectory →

Session vs Threema: editorial side-by-side

S
Session
COMMS
0.0

Session shipped a protocol rewrite and a paid tier, then went publicly broke — the founder is asking users to bail it out.

◆ Current state

Session is simultaneously in its most ambitious technical phase and an open funding crisis. Protocol V2 — re-implementing forward secrecy and layering post-quantum cryptography on top of Session's onion-routed transport — has been announced, and the Session Pro paid tier exited beta planning into a December development update. Then in March, cofounder Chris McCabe published a personal appeal saying the project cannot continue developing without user support, and the public feed has been quiet since.

◆ Where it's heading

The product roadmap that was meant to fund itself via Session Pro is colliding with the underlying problem the appeal makes plain: the Loki/Oxen-era token economics and donations aren't covering ongoing development. Protocol V2 and Pro are the bets that have to land for Session to remain viable; if Pro doesn't convert a meaningful share of the user base, the next twelve months are about scope reduction, not feature growth. The Feb 1 APT key rotation in January suggests the core infrastructure is still being maintained — for now.

◆ Prediction

Watch for either a hard Session Pro launch and conversion announcement, or a more explicit wind-down / handoff post. A long stretch of silence after a funding appeal usually resolves one way or the other within a quarter; the absence of any new posts since mid-March is itself a signal.

T
Threema
COMMS
5.0

Threema leans on enterprise OnPrem features while sharpening its anti-WhatsApp, anti-Signal positioning.

◆ Current state

Threema's recent activity splits between shipping and positioning. Concrete product work: a new in-app Survey Feed in the Threema Channel, the Liquid Glass iOS 7.1 redesign, DualLock for OnPrem chats on a lost or stolen device, and screenshot prevention in Threema Work for iOS. Most of the remainder is editorial — #DeleteWhatsAppDay, Zero Trust explainers, commentary on the politician-targeting Signal/WhatsApp attacks — aimed at sharpening the privacy positioning.

◆ Where it's heading

The growth story is increasingly the OnPrem and Work tiers. DualLock and anti-screenshot are explicitly enterprise security controls that put distance between Threema and consumer Signal. The publishing cadence around competitor incidents and privacy theory suggests Threema is courting decision-makers spooked by the recent Signal/WhatsApp narrative more than chasing consumer growth.

◆ Prediction

Expect more enterprise-shaped controls on OnPrem — finer admin policy, audit trails, additional device-loss safeguards — paired with continued public-positioning posts timed to competitor incidents. Consumer-side product investment looks deprioritised relative to the Work tier.

Alternatives to Session and Threema

Other Comms products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Session or Threema.

See all Session alternatives → · See all Threema alternatives →

Recent activity from Session and Threema

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 8d agoThreemaSurvey Feed: Involving Users in the Development Process
  2. 26d agoThreema#DeleteWhatsAppDay: More Relevant Than Ever
  3. 1mo agoThreemaLocal Data Security with Android Keystore
  4. 1mo agoThreemaCyberattack on Politicians: Security Is More Than Encryption
  5. 1mo agoThreemaProtected Data Even if a Device Is Lost
  6. 1mo agoThreemaLiquid Glass and a More Modern UI in Threema for iOS
  7. 2mo agoSessionCofounder publishes funding appeal: Session is running out of money
  8. 4mo agoSessionRotating keys for Session repos
  9. 6mo agoSessionSession Pro Beta update: December 2025
  10. 6mo agoSessionSession Protocol V2: PFS, Post-Quantum and the Future of Private Messaging
  11. 7mo agoSessionRemoving screenshot alerts from Session
  12. 7mo agoSessionSession Pro Beta Development Update: Progress and Community Insights

Frequently asked questions

What is the difference between Session and Threema?

They serve adjacent needs but don't currently overlap on shipped themes. Threema is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Session better than Threema?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Threema is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.

What are the best alternatives to Session?

Top Session alternatives in Comms are ranked by recent ship velocity. Browse the "Session alternatives" section above for the current picks, or visit /alternatives/session for the full list with editorial commentary on each.

What are the best alternatives to Threema?

Top Threema alternatives in Comms are ranked by recent ship velocity. Browse the "Threema alternatives" section above for the current picks, or visit /alternatives/threema for the full list with editorial commentary on each.