Android Apps to End-to-End Encryption

Xabber is a free and open-source XMPP (Jabber) client for Android. It provides secure and reliable instant messaging with support for various XMPP features, including encryption, group chat, and decentralized communication. Leveraging the open XMPP protocol, Xabber offers a privacy-friendly alternative to centralized messaging platforms.

Sync.com stands out as a security-focused cloud storage solution offering robust end-to-end encryption, ensuring your files are private and protected. It provides seamless file synchronization, backup, and sharing capabilities across devices, making it an excellent choice for individuals and businesses prioritizing data security and privacy.

Handcent Next SMS is a powerful and highly customizable SMS/MMS messenger application for Android. It offers a rich set of features, including extensive customization options, enhanced privacy and security features, scheduling, and robust support for various media types, making it a comprehensive alternative to the default messaging app.

GC Bookmarks is a robust cloud-based bookmark manager designed for efficient organization and retrieval of your favorite web pages. It offers advanced features like visual bookmarks, tag-based filtering, and document annotation to help you manage your knowledge effectively across various platforms.

IDrive offers comprehensive cloud backup, online storage, and file syncing solutions for consumers and businesses. It provides encrypted backup, zero-knowledge privacy, and supports various devices and data types.

Turtl is a secure and private note-taking, bookmarking, and document storage application. It utilizes strong client-side encryption to ensure that only you and authorized collaborators can access your sensitive information, making it ideal for managing confidential projects and data.

Kik Messenger is a popular instant messaging application designed for smartphones. It enables users to send text messages, photos, videos, and participate in group chats. Known for its user-friendly interface and focus on the social aspect of messaging, Kik offers a space for communication and connection.

ChatSecure is a privacy-focused messaging application for iOS that leverages the robust and decentralized XMPP protocol. It offers strong end-to-end encryption using OTR and OMEMO, ensuring confidential communication.

pCloud offers a robust cloud storage solution for individuals and businesses, emphasizing security and ease of access. It provides a secure place to store, sync, and share files from any device.

ADrive offers a comprehensive suite of cloud storage, file management, and backup solutions designed for individuals, businesses, and enterprises, providing secure and accessible data handling.

Inky is a feature-rich email client prioritizing security and a clean interface across Windows, macOS, iOS, and Android. It offers seamless multi-account management, robust privacy features including encryption, and integrations for enhanced productivity and organization.

WizNote is a feature-rich, cross-platform cloud-based note-taking application designed for individuals and teams. It offers robust tools for capturing, organizing, and sharing information, with a strong focus on productivity and knowledge management.

Rocket.Chat is a comprehensive free and open-source team communication platform, offering real-time chat, audio/video conferencing, screen sharing, and file sharing. Designed for flexibility, it can be self-hosted on-premises for maximum control and customization, making it ideal for organizations prioritizing data privacy and security.

Thinkery is a fast, lightweight, and privacy-focused web-based note-taking application designed for organizing notes, bookmarks, and to-dos. It leverages a flexible hierarchical tagging system for organization and offers features like offline access, markdown support, and end-to-end encryption.

Mozy is a robust online backup service designed for individuals and businesses, offering secure cloud storage for critical data with automatic backups and strong encryption to protect against data loss.

Amazon Drive, now superseded by Amazon Photos for photo/video and Amazon S3 for other file types, was a cloud storage service providing online backup, file synchronization, and sharing capabilities. It offered various storage plans, including unlimited photo storage for Amazon Prime members.

Riot.im, now known as Element, is a secure, privacy-focused collaboration platform built on the open Matrix protocol. It enables real-time communication through chat, voice, and video calls, offering end-to-end encryption and bridging capabilities to connect with users on other networks like Slack, GitHub, and more.

Zoho Mail is a secure and private email hosting service for both individuals and businesses, offering custom domains, ample storage, and integration with the Zoho suite of productivity tools. It prioritizes user privacy with strong encryption and a strict no-ads policy, providing a professional and reliable communication platform.

vBoxxCloud offers secure file sharing and collaboration with robust security features, keeping your data private and accessible from anywhere.

ICQ is a veteran instant messaging platform offering a wide range of communication features, including text chat, voice and video calls, screen sharing, and group chats. It aims to provide a reliable and feature-rich messaging experience with a focus on privacy and security.

Ring (SFLphone) is a free and open-source communication platform offering secure messaging, voice, and video calls. It leverages decentralization and end-to-end encryption for enhanced privacy across multiple operating systems including Linux, Windows, macOS, and Android.

Tresorit is a leading cloud storage and collaboration platform for businesses, prioritizing end-to-end encryption and zero-knowledge architecture. It offers secure file sharing, synchronization, and online backup, ensuring data privacy and compliance with stringent regulations.

Storage Made Easy is a versatile hybrid Cloud File Server and Enterprise File Share and Sync (EFSS) solution. It allows organizations to unify access to various cloud storage services and on-premises storage, providing a single pane of glass for managing files across disparate locations while prioritizing security, control, and collaboration.

Wire is a secure, cross-platform messaging and collaboration client offering end-to-end encryption by default for all communication types including messaging, voice and video calls, and file sharing across desktop and mobile devices.

Nomadesk provides secure file sharing, synchronization, and backup solutions, designed for businesses that need robust data protection and accessibility across devices. It functions as a virtual disk, ensuring files are always available and protected.

Mattermost is an open-source, self-hosted platform for secure team collaboration, offering a Slack-alternative with emphasis on data control, privacy, and customizability. It provides a range of communication and project management tools for distributed and technical teams.

OwnDrive is a comprehensive online storage and collaboration platform designed for individuals, professionals, and businesses. It offers a secure space to store, back up, share, and synchronize files across various devices, alongside integrated tools for calendar, contacts, and media management.

Sookasa provides transparent end-to-end encryption for files stored in Dropbox, automatically protecting sensitive data on any device and ensuring compliance with data privacy regulations without changing user workflow.

Syncplicity is a robust file synchronization and sharing platform designed for businesses, offering secure cloud storage, collaborative tools, and granular control over data.

Koofr is a secure, EU-based cloud storage service offering a generous free tier and the unique ability to connect multiple existing cloud accounts from providers like Google Drive, Dropbox, and OneDrive. It serves as a centralized hub for all your digital files, enhancing accessibility and management across platforms.