BlackBerry was a brand of smartphones and other related mobile services and devices. The line was originally developed and maintained by the Canadian company BlackBerry Limited from 1999 to 2016, after which it was licensed to various companies.
The landscape for instant messaging involves cross-platform instant messaging clients that can handle one or multiple protocols. Clients that use the same protocol can typically federate and talk to one another. The following table compares general and technical information for cross-platform instant messaging clients in active development, each of which have their own article that provide further information.
Opera Mobile is a mobile web browser for smartphones, tablets and PDAs developed by Opera.
Tor, short for The Onion Router, is free and open-source software for enabling anonymous communication. It directs Internet traffic via a free, worldwide volunteer overlay network that consists of more than seven thousand relays.
DuckDuckGo is an American software company that offers a number of products intended to help people protect their online privacy. The flagship product is a search engine that has been praised by privacy advocates. Subsequent products include extensions for all major web browsers and a custom DuckDuckGo web browser.
Android Honeycomb is the codename for the third major version of Android, designed for devices with larger screen sizes, particularly tablets, however has been unofficially ported to the Nexus One. It is the eighth version of Android and is no longer supported. Honeycomb debuted with the Motorola Xoom in February 2011. Besides the addition of new features, Honeycomb introduced a new so-called "holographic" user interface theme and an interaction model that built on the main features of Android, such as multitasking, notifications and widgets.
Firefox OS is a discontinued open-source operating system – made for smartphones, tablet computers, smart TVs, and dongles designed by Mozilla and external contributors. It is based on the rendering engine of the Firefox web browser, Gecko, and on the Linux kernel. It was first commercially released in 2014.
MIUI was a mobile operating system by Xiaomi for its smartphones and devices, from 2010 to 2023. MIUI was based on the Android Open Source Project, and served as the basis for other OS deviations by Xiaomi: MIUI for Poco, MIUI Pad, MIUI Watch, and MIUI TV (PatchWall).
The Guardian Project is a global collective of software developers, designers, advocates, activists, and trainers who develop open-source mobile security software and operating system enhancements. They also create customized mobile devices to help individuals communicate more freely and protect themselves from intrusion and monitoring. The effort specifically focuses on users who live or work in high-risk situations and who often face constant surveillance and intrusion attempts into their mobile devices and communication streams.
Threema is a paid cross-platform encrypted instant messaging app developed by Threema GmbH in Switzerland and launched in 2012. The service operates on a decentralized architecture and offers end-to-end encryption. Users can make voice and video calls, send photos, files, and voice notes, share locations, and make groups. Unlike many other popular secure messaging apps, Threema does not require phone numbers or email addresses for registration, only a one-time purchase that can be paid via an app store or anonymously with Bitcoin or cash.
The Tor Project, Inc. is a 501(c)(3) research-education nonprofit organization based in Winchester, New Hampshire. It is founded by computer scientists Roger Dingledine, Nick Mathewson, and five others. The Tor Project is primarily responsible for maintaining software for the Tor anonymity network.
LineageOS is an Android-based operating system for smartphones, tablet computers, and set-top boxes, with mostly free and open-source software. It is the successor to CyanogenMod, from which it was forked in December 2016, when Cyanogen Inc. announced it was discontinuing development and shut down the infrastructure behind the project. Since Cyanogen Inc. retained the rights to the Cyanogen name, the project rebranded its fork as LineageOS.
Puffin Browser is a remote browser developed by CloudMosa, an American mobile technology company founded by Shioupyn Shen.
Mullvad is a commercial VPN service based in Sweden. Launched in March 2009, Mullvad operates using the WireGuard and OpenVPN protocols. It also supports Shadowsocks as a bridge protocol for censorship circumvention. Mullvad's VPN client software is released under the GPLv3, a free and open-source software license.
NordVPN is a Lithuanian VPN service provided by Nordsec Ltd with applications for Microsoft Windows, macOS, Linux, Android, iOS, Android TV, and tvOS. Manual setup is available for wireless routers, NAS devices, and other platforms.
Huawei Mobile Services (HMS) is a collection of proprietary services and high level application programming interfaces (APIs) developed by Huawei Technologies Co., Ltd. Its hub known as HMS Core serves as a toolkit for app development on Huawei devices. HMS is typically installed on Huawei devices on top of running dual-framework HarmonyOS operating system, and on its earlier devices running the Android operating system with EMUI including devices already distributed with Google Mobile Services. Alongside, HMS Core Wear Engine for Android phones with lightweight based LiteOS wearable middleware app framework integration connectivity like notifications, status etc.
CalyxOS is an operating system for smartphones based on Android with mostly free and open-source software. It is produced by the Calyx Institute as part of its mission to "defend online privacy, security and accessibility."
DivestOS is an operating system based on the Android mobile platform. It is a soft fork of LineageOS that aims to increase security and privacy with support for end-of-life devices. As much as possible, it removes unnecessary proprietary Android components and includes only free-software.
OnionShare is an open source file sharing application using tor network to share files, available on most major platforms. It also lets users host websites and chat in a secure and anonymous manner. It uses peer-to-peer sharing over Tor network to preserve privacy and anonymity.
