Ad-free Apps with 'Ad-free' feature for Android

Open-source browser with Gecko engine, supporting HTML add-ons and providing privacy features like Enhanced Tracking Protection and third-party cookie blocking.

Cross-platform, free media player supports multimedia files, DVDs, streaming, offers hardware acceleration, 4K, lossless audio, and more.

Free and open-source office suite with advanced word processing, spreadsheets, presentations, vector graphics, math formula editor, and database tools.

Open-source password manager with AES-256 encryption and device sync. Store and access encrypted logins across platforms like iOS and Android.

Obsidian is a note-taking app that lets you create a personal knowledge graph with ease. It is designed for non-linear thinking and allows you to easily link your notes together wiki-style.

Cross-platform email client providing POP/IMAP support, robust filtering, multiple accounts, and chat. Extendable via add-ons with RSS/Atom, etc.

An encrypted messaging app focused on privacy, supporting texts, calls, photos, videos, files, and group chats, with no ads or trackers.

Media center supporting movies, series, YouTube, and smartTV casting via DLNA/Chromecast. Offers HD, subtitles, add-ons, with no registration needed. Notice of new episodes.

Fast, secure browser with built-in ad block, privacy controls, and global tracking protections. Optimizes data, speed, and battery life.

Put your files into your Dropbox on one computer, and they'll be instantly available on any of your other computers that also have Dropbox installed. Because copies of your files are stored on Dropbox's secure servers, you can also access them from any computer or mobile...

LocalSend is a free, open-source, cross-platform file-sharing tool designed to securely share files and messages with nearby devices over your local network without needing an internet connection. Here are some of its key features:

Web browser built on an open-source platform featuring multiple account support, integrated password manager, dark mode, real-time translation, and seamless cross-device syncing.

Secure Swiss-based email with end-to-end encryption and zero third-party access. Available across devices, offering a free version to promote privacy.

Enhance privacy with a secure, portable browser that hides your IP and encrypts connections on multiple platforms, maintaining anonymity.

On-premises file sync, universal access, integrated collaboration, real-time communication with privacy and data control focus.

Discover and install FOSS Android apps with ease. Privacy-focused, ad-free, and no registration required, F-Droid offers a lightweight alternative.

Experience instant messaging with remarkable speed and robust security. Join massive group chats or channels. Enjoy free and advanced features.

Open source note-taking app with Markdown support, to-do integration, and synchronization with cloud services like Dropbox and OneDrive.

Free content, multilingual online encyclopedia written and maintained by a community of volunteers through a model of open collaboration, using a wiki-based editing system.

Lightweight and open-source app for YouTube, PeerTube, SoundCloud, and more. No Google Account needed, supports 4K and background audio streaming with downloads.

Web-based Git hosting service facilitating collaboration, with features like issue tracking, social networking, and wikis for project management.

Cloud service for file storage and sync, integrated with Google Docs suite, facilitating collaboration and offering scalable storage solutions.

Highly customizable browser with built-in ad and tracker blockers, Chromium compatibility, advanced tab management, cross-device sync, and strong privacy features.

A secure collaboration app with end-to-end encryption and interoperability across web, desktop, and mobile. Includes chat, voice, and video calls.

Federated and open-source social network with no ads, 500-character limit, custom emojis, and content warnings, emphasizing privacy and personal interaction.