Threema

01 · Who’s behind it

Who runs Threema

Threema threema.ch

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

Company

No imprint we could read

Online since

Not in the Internet Archive

Audience

Top 10K In English

02 · Privacy

What Threema tracks

What the homepage loads before you accept or decline cookies. A cookie banner should hold most of it back until you agree, and a tag manager can load more that we don’t see.

20 of the 60 sites closest to Threema match.

1. 01
   Signal signal.org Top 10K English No trackers

   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

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2. 02
   Element element.io English 1 tracker

   Element | Secure collaboration and messaging

   Element is a Matrix-based end-to-end encrypted messenger and secure collaboration app. It’s decentralised for digital sovereign self-hosting, or through a hosting service such as Element Matrix Services. Element operates on the open Matrix network to provide interoperability and easy connections.

   • Google Search Console
   • Amazon SES
   • Atlassian
   • cdnjs
   • Cloudflare
   • Cloudflare DNS

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

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3. 03
   WhatsApp whatsapp.com Top 100 English No trackers

   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

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4. 04
   Viber viber.com Top 1K English 4 trackers

   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

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5. 05
   BlackBerry blackberry.com Top 10K English 1 tracker

   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

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6. 06
   Proton proton.me Top 10K English No trackers

   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

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7. 07
   LINE line.me Top 1K English 1 tracker

   LINE｜always at your side.

   More than just a messenger app. LINE is new level of communication and the very infrastructure of your life.

   • Google Search Console
   • Amazon CloudFront
   • Google Tag Manager
   • jsDelivr
   • Meta Business Suite

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

   Comment

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8. 08
   Discord discord.com Top 1K English 2 trackers

   Discord - Group Chat That’s All Fun & Games

   Discord is great for playing games and chilling with friends, or even building a worldwide community. Customize your own space to talk, play, and hang out.

   • Google Search Console
   • Apple Business
   • Atlassian
   • Cloudflare
   • Cloudflare DNS
   • DocuSign

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

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9. 09
   Mattermost mattermost.com English 3 trackers

   Mattermost | Operational and AI Sovereignty for Critical Infrastructure and National Security

   Zero-trust collaboration, automation and AI in private cloud, self-hosted, and air-gapped environments. Built for national security, critical infrastructure, and regulated enterprises.

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

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

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10. 10
    Messenger messenger.com Top 10K English No trackers

    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

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11. 11
    Tresorit tresorit.com English 3 trackers

    End-to-End Encrypted Cloud Storage for Businesses | Tresorit

    Share files securely with anyone using encrypted cloud storage. Get the highest standard of data security in the cloud.

    • Google Search Console
    • Apple Business
    • Atlassian
    • Azure DNS
    • Cloudflare
    • HubSpot

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

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12. 12
    Tuta tuta.com English No trackers

    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

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13. 13
    StartMail startmail.com English No trackers

    Private, Secure and Encrypted Email You Can Trust | StartMail

    Secure your emails with StartMail's encryption and customizable aliases, ensuring ultimate privacy and protection for your data.

    • Google Search Console
    • nginx
    • Nuxt
    • Vue.js
    • Zendesk

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

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14. 14
    GroupMe groupme.com English No trackers

    GroupMe | Group chat app

    Group text messaging to every phone. The easy way to connect with all the groups in your life, big and small.

    • Google Search Console
    • Amazon CloudFront
    • Framer
    • Google Fonts
    • Microsoft 365
    • Amazon Route 53

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

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15. 15
    AhnLab ahnlab.com Top 10K English 2 trackers

    AhnLab

    AhnLab delivers an AI-powered cybersecurity platform that connects endpoint, network, cloud, CPS security, XDR, and threat intelligence to help businesses stay secure.

    • Google Search Console
    • Atlassian
    • Amazon CloudFront
    • GlobalSign
    • Google Analytics
    • Google Tag Manager

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

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16. 16
    TrueConf trueconf.net Top 1K English 1 tracker

    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

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17. 17
    Kaspersky kaspersky.com Top 1K English 2 trackers

    Kaspersky Cyber Security Solutions for Home and Business | Kaspersky

    Official Site – A Global Leader in next-generation cybersecurity solutions and services, Kaspersky offers premium protection against all cyber threats for your home and business.

    • Google Search Console
    • nginx
    • DocuSign
    • Google Tag Manager
    • Kameleoon
    • Microsoft 365

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

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18. 18
    Zalo zalo.me Top 10K English 1 tracker

    Zalo: Phát triển Internet thay đổi cuộc sống người Việt Nam

    Tìm hiểu cách Zalo xây dựng, phát triển và đóng góp thông qua Zalo, Zing, Zalo Video; Trí tuệ nhân tạo (AI) Kiki Auto, mô hình ngôn ngữ lớn; Chuyển đổi số …

    • Google Search Console
    • Amazon SES
    • Google Analytics
    • Microsoft 365
    • Next.js
    • OpenAI

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

    Comment

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19. 19
    Slack slack.com Top 1K English EU-registeredFree plan 1 tracker

    Slack | AI Work Platform & Productivity Tools

    Boost productivity and save time with Slack‌ — ‌the AI work platform for managing projects, automating workflows, and connecting teams securely. Start working smarter today.

    • Google Search Console
    • Apache HTTP Server
    • Google Workspace
    • HubSpot
    • OneTrust
    • Amazon Route 53

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

    Comment

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20. 20
    ExpressVPN expressvpn.com Top 10K English 1 tracker

    ExpressVPN: Best VPN Service for Speed & Privacy in 2026

    Protect your privacy, stream worldwide, and enjoy fast speeds with ExpressVPN. Servers in 113 countries, 24/7 support, and a 30-day risk-free trial—start now!

    • Google Search Console
    • Atlassian
    • Amazon Web Services
    • Amazon CloudFront
    • Google Fonts
    • Google Tag Manager

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

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Closest first, by how much each site’s offer resembles Threema’s. Trackers are counted the same way as above. Highlighted technologies are ones Threema uses too. Votes and comments come from visitors and don’t change the order.

04 · History

No changes yet. Each new crawl is compared with the last one, and what Threema adds, drops or rewrites shows up here.

05 · Details

How we measure

Alternatives are matched by what sites actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Trackers and the rest of the stack come from the homepage’s code and DNS records.