Google Hangouts was a communication platform that allowed users to send messages, make voice and video calls, and join or host group chats. It was one of the most widely used Chrome Apps, with over 200 million users in 2015.
Google Docs was a word processor that enabled users to create and edit documents online, collaborate with others in real time, and access their files from any device. It was one of the core apps of Google Workspace, a suite of cloud-based productivity and collaboration tools. It had over 1 billion users in 2019.
Gmail was an email service that offered users a secure, reliable, and customizable way to send and receive messages. It was one of the most popular email providers in the world, with over 1.8 billion users in 2020.
Google Photos was a photo and video sharing and storage service that allowed users to back up, organize, and search their media files. It offered unlimited free storage for high-quality images and videos, as well as various editing and sharing features. It had over 1 billion users in 2019.
Google Drive was a file storage and synchronization service that enabled users to store, access, and share their files online. It integrated with other Google apps, such as Docs, Sheets, Slides, and Forms, and offered 15 GB of free storage for personal use. It had over 1 billion users in 2018.