Postman

Xcode is Apple's integrated development environment (IDE) for macOS, used to develop software for macOS, iOS, iPadOS, watchOS, and tvOS. It was first released in 2003; the latest stable release is version 13.1, released on October 25, 2021, and is available via the Mac App Store free of charge for macOS Monterey users. Registered developers can download preview releases and prior versions of the suite through the Apple Developer website. Xcode includes Command Line Tools (CLT), which enable UNIX-style development via the Terminal app in macOS. They can also be downloaded and installed without the GUI.

GitHub, Inc. is a provider of Internet hosting for software development and version control using Git. It offers the distributed version control and source code management (SCM) functionality of Git, plus its own features. It provides access control and several collaboration features such as bug tracking, feature requests, task management, continuous integration and wikis for every project. Headquartered in California, it has been a subsidiary of Microsoft since 2018.

It is commonly used to host open-source projects. As of November 2021, GitHub reports having over 73 million developers and more than 200 million repositories (including at least 28 million public repositories). It is the largest source code host as of November 2021.

GitLab Inc. is the open-core company that provides GitLab, the DevOps platform that combines the ability to develop, secure, and operate software in a single application. The open source software project was created by Ukrainian developer Dmitriy Zaporozhets and Dutch developer Sytse Sijbrandij.

Since its founding, GitLab Inc. has been centered around remote work. GitLab has an estimated 30 million registered users, with 1 million being active license users.

The code was originally written in Ruby, with some parts later rewritten in Go, initially as a source code management solution to collaborate within a team on software development. It later evolved to an integrated solution covering the software development life cycle, and then to the whole DevOps life cycle. The current technology stack includes Go, Ruby on Rails, and Vue.js.

It follows an open-core development model where the core functionality is released under an open-source (MIT) license while the additional functionality such as code owners, multiple issue assignees, dependency scanning and insights are under a proprietary license.

Android Studio is the official integrated development environment (IDE) for Google's Android operating system, built on JetBrains' IntelliJ IDEA software and designed specifically for Android development. It is available for download on Windows, macOS and Linux based operating systems or as a subscription-based service in 2020. It is a replacement for the Eclipse Android Development Tools (E-ADT) as the primary IDE for native Android application development.

Android Studio was announced on May 16, 2013 at the Google I/O conference. It was in early access preview stage starting from version 0.1 in May 2013, then entered beta stage starting from version 0.8 which was released in June 2014. The first stable build was released in December 2014, starting from version 1.0.

On May 7, 2019, Kotlin replaced Java as Google's preferred language for Android app development. Java is still supported, as is C++.

eBay Inc. is an American multinational e-commerce corporation based in San Jose, California, that facilitates consumer-to-consumer and business-to-consumer sales through its website. eBay was founded by Pierre Omidyar in 1995, and became a notable success story of the dot-com bubble. eBay is a multibillion-dollar business with operations in about 32 countries, as of 2019. The company manages the eBay website, an online auction and shopping website in which people and businesses buy and sell a wide variety of goods and services worldwide. The website is free to use for buyers, but sellers are charged fees for listing items after a limited number of free listings, and again when those items are sold.

Discord is an American VoIP, instant messaging and digital distribution platform designed for creating communities. Users communicate with voice calls, video calls, text messaging, media and files in private chats or as part of communities called "servers." 

Servers are a collection of persistent chat rooms and voice chat channels. Discord runs on Windows, macOS, Android, iOS, iPadOS, Linux, and in web browsers. As of 2021, the service has over 350 million registered users and over 150 million monthly active users.

Spotify is a Swedish audio streaming and media services provider founded on 23 April 2006 by Daniel Ek and Martin Lorentzon. It is the world's largest music streaming service provider, with over 381 million monthly active users, including 172 million paying subscribers, as of September 2021. Spotify is listed (through a Luxembourg City-domiciled holding company, Spotify Technology S.A.) on the New York Stock Exchange in the form of American depositary receipts.

Spotify offers digital copyright restricted recorded music and podcasts, including more than 70 million songs, from record labels and media companies. As a freemium service, basic features are free with advertisements and limited control, while additional features, such as offline listening and commercial-free listening, are offered via paid subscriptions. Spotify is currently available in 180+ countries as of October 2021. Users can search for music based on artist, album, or genre, and can create, edit, and share playlists.

YouTube Music is a music streaming service developed by YouTube, a subsidiary of Google. It provides a tailored interface for the service, oriented towards music streaming, allowing users to browse through songs and music videos on YouTube based on genres, playlists, and recommendations.

The service also offers a premium tier, which enables ad-free playback audio-only background playback and downloading songs for offline playback. These subscription benefits are also offered to subscribers of Google Play Music and YouTube Premium. The service superseded Google Play Music as Google's main brand for music streaming on December 1, 2020.

Canva is a graphic design platform, used to create social media graphics, presentations, posters, documents and other visual content. The app includes templates for users to use. The platform is free to use and offers paid subscriptions such as Canva Pro and Canva for Enterprise for additional functionality. In 2021, Canva launched a video editing tool. Users can also pay for physical products to be printed and shipped.

In June 2020, Canva raised A$60 million at a valuation of A$6 billion; almost doubling its 2019 valuation. In September 2021, Canva raised USD $200 million and announced a valuation of USD $40 billion.

PicsArt is a San Francisco, California and Yerevan, Armenia-based technology company that develops the PicsArt suite of online photo and video editing applications, with a social creative community. The platform allows users to take and edit pictures and videos, draw with layers, and share the images on PicsArt's and other social networks.

The company was founded in 2011.

Messenger is an instant messaging app and platform developed by Meta Platforms. Originally developed as Facebook Chat in 2008, the company revamped its messaging service in 2010, and subsequently released standalone iOS and Android apps in August 2011 and standalone Facebook Portal hardware for Messenger-based calling in 2018. Later on, Facebook launched a dedicated website interface known as Messenger.com, and separated the messaging functionality from the main Facebook app, allowing users to use the web interface or download one of the standalone apps. In April 2020, Facebook officially released Messenger for Desktop, which is supported on Windows 10 and macOS and distributed on Microsoft Store and App Store respectively.

WhatsApp Messenger, or simply WhatsApp, is an American freeware, cross-platform centralized instant messaging (IM) and voice-over-IP (VoIP) service owned by Meta Platforms. It allows users to send text messages and voice messages, make voice and video calls, and share images, documents, user locations, and other content. WhatsApp's client application runs on mobile devices but is also accessible from desktop computers, as long as the user's mobile device remains connected to the Internet while they use the desktop app. The service requires a cellular mobile telephone number to sign up.

Telegram is a freeware, cross-platform, cloud-based instant messaging (IM) system. The service also provides end-to-end encrypted video calling, VoIP, file sharing and several other features. It was launched for iOS on 14 August 2013 and Android in October 2013. The servers of Telegram are distributed worldwide to decrease frequent data load with five data centers in different regions, while the operational center is based in Dubai in the United Arab Emirates. Various client apps are available for desktop and mobile platforms including official apps for Android, iOS, Windows, macOS and Linux (although registration requires an iOS or Android device and a working phone number). There are also two official Telegram web twin apps – WebK and WebZ – and numerous unofficial clients that make use of Telegram's protocol. All of Telegram's official components are open source, with the exception of the server which is closed-sourced and proprietary.

Telegram provides end-to-end encrypted voice and video calls and optional end-to-end encrypted "secret" chats. Cloud chats and groups are encrypted between the app and the server, so that ISPs and other third-parties on the network can't access data, but the Telegram server can. Users can send text and voice messages, make voice and video calls, and share an unlimited number of images, documents (2 GB per file), user locations, animated stickers, contacts, and audio files. In January 2021, Telegram surpassed 500 million monthly active users. It was the most downloaded app worldwide in January 2021 with 1 billion downloads globally as of late August 2021.

Messenger Kids is a messaging app and platform released by Facebook, Inc. (now Meta Platforms) in December 2017. The platform is designed for a young audience as a safer alternative to the Messenger platform. Users can register with their first and last names instead of phone numbers. It was initially launched for iPad tablets with the iOS operating system in the United States only, though later support for iPhone and Android devices was added and it was rolled out in Canada, Peru, and Mexico.

Parents have oversight and control, with requirements about identity verification and approval of contacts. There are no in-app purchases nor advertisements, and thus also no data collection for advertising purposes, children's accounts are not visible in search on Facebook, and the child's account does not automatically migrate to a full Facebook account once the child turns 13 years old (the minimum age for Facebook registration). It features augmented reality filters and lenses, along with games and educational content.

Facebook is an American online social media and social networking service owned by Meta Platforms. Founded in 2004 by Mark Zuckerberg with fellow Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes, its name comes from the face book directories often given to American university students. 

Facebook can be accessed from devices with Internet connectivity, such as personal computers, tablets and smartphones. After registering, users can create a profile revealing information about themselves. They can post text, photos and multimedia which is shared with any other users that have agreed to be their "friend", or, with a different privacy setting, with any reader. Users can also use various embedded apps, join common-interest groups, buy and sell items or services on Marketplace, and receive notifications of their Facebook friends' activities and activities of Facebook pages they follow. Facebook claimed that it had 2.80 billion monthly active users as of December 2020, and it was the most downloaded mobile app of the 2010s globally.