Open Source APUS Browser Alternatives

The FOSS Browser is a fully free and libre (as in freedom) web browser for the Android eco-system. The browser allow users to browser the internet without unnecessary permissions. FOSS Browser is based on webview and is intentionally designed to be simple, lightweight and easy to use.

Cake Browser is a swipe-based mobile web browser developed for Android and iOS. With Cake Browser you can enjoy a faster, more private mobile browser that includes a free VPN service.

Bromite is a free and open-source web browser for Android. The application is a fork of Chromium and supports ad blocking and provides enhanced privacy. The main goal of  the Bromite project is to provide a clutter-free browsing experience without privacy-invasive features and with the addition of a fast ad-blocking engine. Minimal UI changes are applied to help curbing the idea of "browser as an advertisement platform".

Lucid Browser is a free and open source mobile web browser designed to be lightweight, fast, and simple. The application is designed for quick start-ups and simplistic, while still providing features seen in other popular mobile web browser.Lucid Browser is available for Android and weighs in at only 4MB in total.

Kiwi Browser is a Andrioid-based web browser made to browse the internet, read news, watch videos and listen to music, without annoyances. Kiwi offers a bunch of customization options, allowing you to move the address bar to the bottom, add a hand button to reach the top of the screen, swipe from the edge to navigate in the browser, and see a simplified view for web pages, among others.

Roccat Browser is free web browser designed by Runecats. The Roccat Browser utilize the Webkit rendering engine and is available for macOS and iOS.

Sandcat is a free and open-source browser designed for penetration testers and is used for testing security holes and bugs in websites and web applicaitons. The Sandcat Browser is developed by Syshunt on top of Chromium and uses the Lua programming language to provide extensions and scripting support. Although the browser is directed towards system administrators and penetration testers, it can be useful for people who want to verify in real-time how they are tracked online.

Tor Browser is free and open-source software that guarantees anonymity online through the onion router. It enhances your security and safety while using the internet and is a favorite choice for people who want to browse the web anonmously. The Tor Browser helps you anonymize publishing, web surfing, instant messaging and other functions, using the TCP protocol.

A privacy, security and freedom focused web browser forked from Firefox. LibreWolf is always built from the latest Firefox stable source, for up-to-date security and features along with stability. It uses more than 500 privacy, security, performance settings, patches and LibreWolf-Addons, and is designed to minimize data collection and telemetry performed via Firefox's updater and crashreporter.

Avant Browser is an ultra-fast web browser designed for the modern web. It provides a user-friendly interface that brings a new level of clarity and efficiency to your browsing experience, and frequent upgrades have steadily improved its reliability.

With Opera Developer Browser you can join in on the earliest experiments for the browser. The browser is recommended to be used by developers, enthusiasts and advanced users. Opera Developer Browser and Opera Beta Browser was introduced to improve the development cycle of the browser and to beta tests new version before final release, to the public.

The Yandex.Browser is a free and secure browser developed by the Russian internet service company Yandex. The browser is released for computers, as well as smartphones and tablets. The Yandex.Browser uses the WebKit engine, the same engine found in the Safari browser developed by Apple. It allows you to load webpages quickly, even on slow connections, while ate the same time protecting you from virus and malware attacks.