Sites like Threema

01 · Entity

About Threema

Threema threema.ch

Threema – Secure Communication For Individuals and Companies

The secure instant messenger from Switzerland. GDPR-compliant messaging for individuals and organizations that value privacy, security and data protection.

Wikidata: Instant messaging smartphone app

Top 10K · #1,002 English 2 technologies Crawled Nov 6, 2026

Visit Threema

Summary by Claude

Threema is a Swiss end-to-end encrypted instant messenger for messages, voice and video calls, and file sharing. It is sold as a one-time-purchase private app, a managed business version (Threema Work), and a self-hosted on-premises edition (Threema OnPrem).

Who it’s for

Privacy-conscious individuals, businesses, government and military organizations

Business model

One-time app purchases and business subscription licenses

• secure instant messaging
• end-to-end encrypted messenger
• anonymous messaging without phone number
• Threema Work business messenger
• Threema OnPrem self-hosting
• GDPR-compliant team chat
• encrypted voice and video calls
• enterprise messenger management

02 · Embedding space

Competitor map

Each alternative by how close its vector is to Threema’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

1. 01
   WhatsApp whatsapp.com Top 100 English

   WhatsApp | Secure and Reliable Free Private Messaging and Calling

   Use WhatsApp Messenger to stay in touch with friends and family. WhatsApp is free and offers simple, secure, reliable messaging and calling, available on phones all over the world.

   • Google Search Console
   • Adobe
   • Dropbox
   • Meta Business Suite
   • Microsoft 365
   • Proofpoint

   0 say WhatsApp is a good alternative to Threema 0 say WhatsApp isn’t a real alternative to Threema

   Comment
   Very close cos 0.895
2. 02
   Signal signal.org Top 10K English

   Signal >> Home

   Say "hello" to a different messaging experience. An unexpected focus on privacy, combined with all of the features you expect.

   • Google Search Console
   • Atlassian
   • Cloudflare
   • Cloudflare DNS
   • Google Workspace
   • jQuery

   0 say Signal is a good alternative to Threema 0 say Signal isn’t a real alternative to Threema

   Comment
   Close cos 0.879
3. 03
   Matomo matomo.org Top 10K English

   Privacy-first analytics you can trust - Analytics Platform - Matomo

   Popular analytics tools can miss up to 40% of traffic. Matomo delivers accurate, GDPR-compliant analytics with full data ownership in a platform teams can set up in minutes.

   • Apache HTTP Server
   • Atlassian
   • Amazon CloudFront
   • Font Awesome
   • HubSpot
   • jQuery

   0 say Matomo is a good alternative to Threema 0 say Matomo isn’t a real alternative to Threema

   Comment
   Close cos 0.874
4. 04
   Tuta tuta.com English

   Tuta: Turn ON privacy for free with secure emails, calendars & contacts | Tuta

   Tuta guarantees your data stays private for free & without ads. Quantum-resistant encryption makes Tuta the best secure technology solution to protect your privacy.

   • Astro
   • Amazon Route 53

   0 say Tuta is a good alternative to Threema 0 say Tuta isn’t a real alternative to Threema

   Comment
   Close cos 0.871
5. 05
   Proton proton.me Top 10K English

   Proton: Privacy by default

   Over 100 million people use Proton to stay private and secure online. Get a free Proton account and take back your privacy.

   • Google Search Console
   • Astro
   • Proton Mail
   • Tailwind CSS
   • Yandex Webmaster
   • YouTube embeds

   0 say Proton is a good alternative to Threema 0 say Proton isn’t a real alternative to Threema

   Comment
   Close cos 0.868
6. 06
   8x8 8x8.com Top 10K English

   Vercel Security Checkpoint

   American provider of Voice over IP products

   • Google Search Console
   • Adobe
   • Apple Business
   • Astro
   • Atlassian
   • DocuSign

   0 say 8x8 is a good alternative to Threema 0 say 8x8 isn’t a real alternative to Threema

   Comment
   Close cos 0.869
7. 07
   Bitwarden bitwarden.com Top 10K English

   Best Password Manager for Business, Enterprise & Personal | Bitwarden | Bitwarden

   Bitwarden is the trusted, open source password manager for individuals, teams, and enterprises. Securely store, share, and manage passwords, passkeys, and secrets. Free to start.

   • Google Search Console
   • Amazon SES
   • Atlassian
   • Cloudflare DNS
   • Google Tag Manager
   • Google Workspace

   0 say Bitwarden is a good alternative to Threema 0 say Bitwarden isn’t a real alternative to Threema

   Comment
   Close cos 0.868
8. 08
   Infomaniak SA infomaniak.com Top 10K English

   Control your data governance with an independent cloud. Solutions hosted in the heart of Europe, designed to protect your confidentiality.

   • Google Search Console
   • Apple Business
   • Atlassian
   • Gatsby
   • Mailgun
   • React

   0 say Infomaniak SA is a good alternative to Threema 0 say Infomaniak SA isn’t a real alternative to Threema

   Comment
   Close cos 0.870
9. 09
   BlackBerry blackberry.com Top 10K English

   BlackBerry | Secure Communications and QNX

   Learn how BlackBerry operates through two divisions — BlackBerry Secure Communications and QNX — delivering mission‑critical security and embedded software.

   • Google Search Console
   • Adobe
   • Apple Business
   • Atlassian
   • Cloudflare
   • Amazon CloudFront

   0 say BlackBerry is a good alternative to Threema 0 say BlackBerry isn’t a real alternative to Threema

   Comment
   Close cos 0.864
10. 10
    Viber viber.com Top 1K English

    Home | Viber

    cross-platform instant messaging voice-over-Internet Protocol application for smartphones

    • nginx
    • Akamai
    • Amazon SES
    • Atlassian
    • Font Awesome
    • Google Analytics

    0 say Viber is a good alternative to Threema 0 say Viber isn’t a real alternative to Threema

    Comment
    Close cos 0.865
11. 11
    TrueConf trueconf.net Top 1K English

    Video Conferencing Software for Secure Communication — TrueConf

    Video conferencing software with UltraHD 4K support and great H.323/SIP interoperability. Super fast on-premises deployment in LAN or VPN.

    • Google Search Console
    • nginx
    • Google Tag Manager
    • PHP
    • Cloudflare Turnstile
    • WordPress

    0 say TrueConf is a good alternative to Threema 0 say TrueConf isn’t a real alternative to Threema

    Comment
    Close cos 0.862
12. 12
    MetaMask metamask.io Top 10K English

    MetaMask Crypto Wallet. Buy and Sell Bitcoin, Ethereum, Solana

    Buy, sell, swap, earn, and spend BTC, ETH, SOL and more — all in one self-custody crypto wallet. Total control over your assets, trusted by millions of users.

    • Google Search Console
    • Cloudflare
    • Cloudflare DNS
    • Contentful
    • Google Tag Manager
    • Google Workspace

    0 say MetaMask is a good alternative to Threema 0 say MetaMask isn’t a real alternative to Threema

    Comment
    Close cos 0.863
13. 13
    Messenger messenger.com Top 10K English

    Messenger

    Hang out anytime, anywhere—Messenger makes it easy and fun to stay close to your favorite people

    • Google Search Console
    • Microsoft 365
    • Proofpoint

    0 say Messenger is a good alternative to Threema 0 say Messenger isn’t a real alternative to Threema

    Comment
    Close cos 0.864
14. 14
    Loom loom.com Top 10K English

    Free screen recorder for Mac and PC | Loom

    Best free online screen recording tool with advanced video editing and video storage trusted by over 22 million people and easy sharing from Loom.com.

    • Google Search Console
    • Amplitude
    • Apple Business
    • Atlassian
    • Amazon CloudFront
    • DocuSign

    0 say Loom is a good alternative to Threema 0 say Loom isn’t a real alternative to Threema

    Comment
    Close cos 0.861
15. 15
    Brevo brevo.com Top 10K English

    Brevo: Email & SMS Marketing, CRM & Automation Platform

    Brevo is the most intuitive all-in-one customer engagement platform: email and SMS marketing, automation, CRM, live chat, and transactional email. Try it free.

    • Google Search Console
    • Atlassian
    • Brevo
    • Cloudflare
    • Cloudflare DNS
    • Cloudflare Web Analytics

    0 say Brevo is a good alternative to Threema 0 say Brevo isn’t a real alternative to Threema

    Comment
    Close cos 0.862
16. 16
    Infobip infobip.com Top 10K English

    Infobip - Build meaningful customer relationships across any communication channel

    Engage your customers and prospects with simple drag and drop email, SMS, chatbot or build custom solutions with the best in class APIs

    • Google Search Console
    • Amplitude
    • Apple Business
    • Atlassian
    • Cloudflare
    • Cloudflare Web Analytics

    0 say Infobip is a good alternative to Threema 0 say Infobip isn’t a real alternative to Threema

    Comment
    Close cos 0.862
17. 17
    Temp Mail temp-mail.org Top 10K English

    Website

    • Google Search Console
    • Cloudflare
    • Cloudflare DNS
    • Cloudflare Web Analytics

    0 say Temp Mail is a good alternative to Threema 0 say Temp Mail isn’t a real alternative to Threema

    Comment
    Close cos 0.861
18. 18
    iubenda iubenda.com Top 10K English

    Compliance Solutions for Websites, Apps and Organizations | iubenda

    iubenda is your 360° compliance solution for global data privacy laws. Privacy policy generator, cookie consent management, ROPA, Terms and more.

    • Google Search Console
    • Amplitude
    • Apple Business
    • Bootstrap
    • bunny.net
    • consentmanager

    0 say iubenda is a good alternative to Threema 0 say iubenda isn’t a real alternative to Threema

    Comment
    Close cos 0.863
19. 19
    Swisscom swisscom.ch Top 10K English

    Mobile, TV, Internet & Security: Residential Customers | Swisscom

    Discover the best deals and subscriptions for internet, TV, mobile and security. Experience Switzerland’s best network. Compare offers and switch!

    • Google Search Console
    • Adobe Experience Manager
    • Microsoft 365

    0 say Swisscom is a good alternative to Threema 0 say Swisscom isn’t a real alternative to Threema

    Comment
    Close cos 0.861
20. 20
    OneSignal onesignal.com Top 10K English

    Customer Engagement Platform for Email, Push… - OneSignal

    The world's leader for mobile push notifications, web push, SMS, email and in-app messaging. Trusted by 2 million+ businesses to send 12 billion+ messages per…

    • Google Search Console
    • Bootstrap
    • cdnjs
    • Cloudflare
    • Cloudflare DNS
    • Google Cloud

    0 say OneSignal is a good alternative to Threema 0 say OneSignal isn’t a real alternative to Threema

    Comment
    Close cos 0.860

Ranked by score: the cosine similarity of each site’s vector to threema.ch’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones Threema uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What Threema is built with, and what its closest competitors use, from its homepage’s code and its DNS records.