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

Omni Calculator
calculator.net
Build vs. Buy Calculator
DeveloperToolStack
DevNestTools
DevTools Advanced
DevTools.fit
Free, no-signup calculators for the money side of building software and freelancing

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 | devfinancetools.com |
| Pricing | ||
| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of ChatSecure yet.
DevFinanceTools is a collection of free, no-signup calculators for the money side of building software and freelancing. Everything runs in your browser — no account, no tracking beyond basic page-view analytics — and every tool shows its formulas and benchmarks so you can check the maths...
What each product offers, as listed by its team.


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.
No analysis of DevFinanceTools yet.
Walkthroughs and reviews on video.
Tutorial Chatsecure
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using ChatSecure and DevFinanceTools. 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...
We have no reviews of DevFinanceTools yet. Be the first one to post
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 DevFinanceTools since Aug 2026.
When comparing ChatSecure and DevFinanceTools, you can also consider the following products.

Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.
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Helping you make rational decisions, one calculation at a time.
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Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
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Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
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Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.
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Should you build an internal tool? Or just buy it?
Compare Build vs. Buy Calculator to ChatSecure or DevFinanceTools: