
Element.io
Telegram
Tox
WhatsApp
Signal
Threema
Zulip
ChatSecure is a free and open source messaging app that features OTR encryption over XMPP.

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Which is more popular?
Based on our record, ChatSecure seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | chatsecure.org | opalstack.com |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
This app is recommended for privacy-conscious users, journalists, activists, or anyone needing a secure way to communicate sensitive information. It's especially beneficial for individuals who prefer open-source applications and have a technical understanding of secure messaging.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using ChatSecure and Opalstack. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


ChatSecure is a free and open-source encrypted messaging app for iOS. It takes various measures to make sure there are no loopholes in your security and privacy needs. The secure messaging app features OTR...
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Recommendations tracked on public social media and blogs since March 2021.


Https://chatsecure.org/ > ChatSecure is a free and open source messaging app that features OMEMO encryption and OTR encryption over XMPP. You can connect to your existing Google accounts or create new accounts on public XMPP servers... - Source: Hacker News / over 3 years ago
In this case, I would rather suggest others to use the likes of Element a Matrix client, or e.g. RetroShare, Briar, OnionShare, or e.g. XMPP with the clients like Dino, Conversations, Gajim, ChatSecure. Source: over 5 years ago
Tracking Opalstack since Sep 2023.
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