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WhatsApp Facebook Messenger iMessage Telegram Signal Threema LINE BiP Delta Chat WeChat KakaoTalk Wickr Dust Element Viber Wire Olvid Jitsi Meet More? More?

Link https://www.whatsapp.com/ https://www.messenger.com/ https://support.apple.com/guide/messages/welcome/mac https://telegram.org/ https://signal.org https://threema.ch/en https://line.me/ https://bip.com/ https://delta.chat/en/ https://www.wechat.com/ https://www.kakaocorp.com/service/KakaoTalk https://wickr.com/ https://usedust.com/ https://element.io https://viber.com https://wire.com/en/ https://olvid.io/en

Terms & Conditions https://www.whatsapp.com/legal/client https://www.facebook.com/terms.php https://www.apple.com/legal/internet-services/icloud/ https://telegram.org/faq https://signal.org/legal/#terms-of-service https://broadcast.threema.ch/en/terms-of-service https://terms.line.me/line_terms/?lang=en https://delta.chat/en/gdpr ⛔ https://wickr.com/terms/ ⛔ https://wire.com/en/legal/ https://olvid.io/faq/en/

Privacy policy https://www.whatsapp.com/legal/updates/privacy-policy/ https://www.facebook.com/policy.php https://support.apple.com/en-gb/HT211975 https://telegram.org/privacy https://signal.org/legal/#privacy-policy https://threema.ch/en/privacy https://terms.line.me/line_rules/?lang=en https://bip.com/en/privacy-policy/ https://delta.chat/en/help https://www.kakaocorp.com/kakao/ai/algorithm https://wickr.com/privacy/ https://usedust.com/privacy-policy/ https://wire.com/en/legal/ https://olvid.io/privacy/en/

Wikipedia https://en.wikipedia.org/wiki/WhatsApp https://en.wikipedia.org/wiki/Facebook_Messenger https://en.wikipedia.org/wiki/WhatsApp https://en.wikipedia.org/wiki/Telegram_(software) https://en.wikipedia.org/wiki/Signal_(software) https://en.wikipedia.org/wiki/Threema https://en.wikipedia.org/wiki/Line_(software) https://en.wikipedia.org/wiki/BIP https://de.wikipedia.org/wiki/Delta_Chat_(Instant_Messenger) https://en.wikipedia.org/wiki/WeChat https://en.wikipedia.org/wiki/KakaoTalk https://en.wikipedia.org/wiki/Wickr ⛔ https://en.wikipedia.org/wiki/Wire_(software) ⛔

Number of users 500 mln 20 mln 53 mln

Owner Facebook Facebook Apple Telegram Messenger LLP Signal Messenger LLC Threema GmbH LINE Corporation BiP İletişim Teknolojileri ve Dijital Servisler A.Ş. Merlinux GmbH Tencent Inc. Kakao Corp. Wickr Inc. Radical App, LLC Wire Swiss GmbH Olvid

Active since 2009 2011 2011 2013 2014 2012 2012 2020 2019 2011 2010 2012 2014 2014 2020

Open source (define in the rows below) ⛔ ⛔ ⛔ ✅ ✅ ✅ ⛔ ⛔ ✅ ⛔ ⛔ ⛔ ⛔

Open source client ⛔ ⛔ ⛔ ✅ ⛔ ⛔ ⛔ ⛔ ⛔ ⛔ ✅ ⛔

Open source server ✅ ⛔

Free ✅ ✅ ✅ ✅ ✅ ⛔ ✅ ✅ ✅ ✅ ✅ ⛔ ✅ ⛔ ✅

Platforms

iOS app ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅

Android app ✅ ✅ ⛔ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅

Web app ✅ ✅ ⛔ ✅ ⛔ ✅ ⛔ ⛔ ✅ ⛔ ⛔ ✅ ⛔

MacOS app ✅ ✅ ✅ ✅ ✅ ⛔ ✅ ✅ ✅ ✅ ⛔ ✅ ⛔

Windows app ✅ ✅ ⛔ ✅ ✅ ⛔ ✅ ✅ ✅ ✅ ✅ ⛔ ✅ ⛔

Linux app ⛔ ⛔ ⛔ ✅ ✅ ⛔ ⛔ ✅ ⛔ ✅ ⛔ ✅ ⛔

Functionality

Group chat ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅

Backups Google Drive or iCloud Facebook account iCloud Telegrams own cloud Local (off by default) Local and Threema's own cloud ✅ ✅

Voice messages ✅ ✅ ✅ ✅ ✅ ✅ ✅ ⛔

Voice call ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅

Voice group call ✅ ✅ ✅ ✅ ✅ ⛔ ✅ ✅

Video call ✅ ✅ ✅ ✅ ✅ ✅ ✅ ⛔

Video group call ✅ ✅ ✅ ✅ ✅ ⛔ ✅ ⛔

Images share ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅

Files share (other files than images and video's) ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅

Possibility to share public url of your profile ✅ ✅ ⛔ ✅ ⛔ ✅ ✅

API ⛔ ✅ ⛔ ✅ ✅ ✅ ✅ ✅

Chatbot Support ✅ ✅ ✅ ✅ ⛔ ✅

Share location ✅ ✅ ✅ ✅

Security (more is better)

2-step verification ✅ ✅ ✅ ✅ ✅ ⛔

Ablility to lock app with pass ✅ ⛔ ⛔ ✅ ✅ ✅ ✅

End-to-end encryption ✅ ✅ ✅ ✅ ✅

Standard end-to-end encryption ✅ ⛔ ✅ ✅ ✅

Data linked to you (less is better)

Needed for registration Phone number Facebook account Apple ID + phone number (optional) Phone number Phone number Threema ID Email address Username

Phone number ✅ ✅ ✅ ✅ user decision

Email address ✅ ✅ user decision ✅

Location ✅ ✅ ⛔ ⛔

Search history

Contacts ✅ user decision

User ID ✅ ✅

Device ID ✅ ✅

Diagnostics ✅ ⛔

Data usage

Content of messages

Financial info ✅ ⛔

Sources used https://www.linkedin.com/pulse/whatsapp-vs-signal-telegram-2020-chinmayee-paunikar/?articleId=6684071742228492289

https://www.securemessagingapps.com/

https://en.wikipedia.org/wiki/Comparison_of_cross-platform_instant_messaging_clients

https://apps.apple.com/us/app/telegram-messenger/id686449807#ember321

https://apps.apple.com/us/app/signal-private-messenger/id874139669

Need to process https://gadgets.ndtv.com/apps/news/whatsapp-facebook-messenger-telegram-signal-imessage-user-data-collect-privacy-labels-apple-app-store-2349216