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Head-to-head · Encrypted Messaging Apps

SimpleX Chat vs Threema

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score SimpleX Chat #7 in Encrypted Messaging Apps 8.5/10 Free plan Free plan✓ 3 of 3 features Visit SimpleX Chat
Threema #12 in Encrypted Messaging Apps 8.0/10 30-day trial Free trial✓ 3 of 3 features Visit Threema

SimpleX Chat leads on 1 check, Threema on 0, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSimpleX Chat · 8.5/10
  • Free planonly SimpleX Chat
  • Free trialonly Threema

SimpleX Chat scores higher on our rubric for encrypted messaging apps: 8.5 against 8.0 out of 10; our editors rank them #7 and #12.

SimpleX Chat offers free plan; Threema doesn't. On encrypted backups, SimpleX Chat gives you None where Threema offers End_to_end.

SimpleX Chat is the better fit for privacy-focused users avoiding phone numbers. Threema is the better fit for users wanting anonymous, polished paid messaging.

  • SimpleX Chat fits best

    Privacy-focused users avoiding phone numbers

  • Threema fits best

    Users wanting anonymous, polished paid messaging

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. How we rank.

Side by side

Feature SimpleX Chat 8.5/10 Visit ↗ Threema 8.0/10 Visit ↗
At a glance
Editor score 8.5 8.0
Ranking #7 in Encrypted Messaging Apps #12 in Encrypted Messaging Apps
Best for Privacy-focused users avoiding phone numbers Users wanting anonymous, polished paid messaging
Pricing model Free Paid
Starting price Free plan $3/user/mo
Free plan ✓ (best) —
Free trial — 30 days
Deployment Self-hosted, Desktop, Mobile Cloud, Desktop, Mobile
Platforms Windows, macOS, Linux, iOS, Android Web, Windows, macOS, Linux, iOS, Android
Features SimpleX Chat 3/3 · Threema 3/3
Desktop app ✓ ✓
Voice and video calls ✓ ✓
Disappearing messages ✓ ✓
Specs
Encryption coverage Default Default
Maximum group size Not checked yet Not checked yet
Linked device limit Not checked yet 2 devices
Encrypted backups None End_to_end
Our review
Pros
  • End-to-end encrypted messages, media, groups, and calls
  • Open-source apps for mobile, desktop, Linux, and self-hosting
  • Disappearing messages and portable encrypted database export
  • Anonymous account creation without a phone number or email
  • Encrypted messaging, calls, backups, and automatic message deletion
  • Apps and clients for web, desktop, iOS, and Android
Cons
  • The same profile cannot be used simultaneously on multiple devices
  • Desktop linking is supported locally rather than across simultaneous devices
  • Self-hosted relay support may require additional technical administration
  • No free plan for private users
  • Threema Safe excludes message and media history
  • Work plans use annual billing with per-user monthly pricing
Our verdict

SimpleX Chat is an open-source encrypted messaging application for people who want private conversations without user profile identifiers. It supports end-to-end encrypted one-to-one and group messaging, file, image, and video sharing,…

Read the review →

Threema is a Swiss encrypted messaging application for individuals, companies, public authorities, and organizations. It combines end-to-end encrypted text and voice messaging with encrypted voice, video, and group calls, file sharing,…

Read the review →
  1. SimpleX ChatEncrypted Messaging Apps 8.5Free plan
  2. ThreemaEncrypted Messaging Apps 8.030-day trial

Strengths and trade-offs

  • SimpleX Chat — where it wins

    • End-to-end encrypted messages, media, groups, and calls
    • Open-source apps for mobile, desktop, Linux, and self-hosting
    • Disappearing messages and portable encrypted database export

    Where it doesn't

    • The same profile cannot be used simultaneously on multiple devices
    • Desktop linking is supported locally rather than across simultaneous devices
    • Self-hosted relay support may require additional technical administration
  • Threema — where it wins

    • Anonymous account creation without a phone number or email
    • Encrypted messaging, calls, backups, and automatic message deletion
    • Apps and clients for web, desktop, iOS, and Android

    Where it doesn't

    • No free plan for private users
    • Threema Safe excludes message and media history
    • Work plans use annual billing with per-user monthly pricing

More comparisons

Guides on encrypted messaging apps

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update