Design client-server interaction to minimize data usage and work well on 2G networks.Our task boiled down to the following goals: Our goal when we launched was to deliver a lightweight, fast, and native Facebook experience for people using typical Android phones and network connections in emerging markets. In addition to continuing to improve how the Facebook for Android app performs on 2G networks, we introduced Facebook Lite in 2015 to address those constraints. So we’ve been working to reduce data usage for people in emerging markets when they want to access Facebook. Through our research in emerging markets and in seeing how people use our apps, we know that cost of data and overall data usage is extremely important to people. Even for people on 3G networks, the intermittency and stability of the connection are often the biggest barriers to delivering a great mobile experience. Although 2G mobile networks cover up to 96% of people globally and are used for basic data connectivity by over half the world’s population, at least 1.6 billion people still live in places where mobile broadband networks (3G and 4G) are not available, making data access difficult. Because of various network conditions and types of hardware, experiences can differ. It’s important to us for everyone to have a great experience using Facebook on their phone, no matter the device they’re using or the connection they’re on. The app now supports 56 languages and is most popular in Brazil, India, Indonesia, Mexico, and the Philippines. It has an APK that is less than 1 MB in size, meaning people can download it in seconds on slow connections. It’s the fastest-growing version of Facebook to reach 100 million users in under nine months. Today we’re excited to share that the app has hit 100 million monthly active users. We rolled out Facebook Lite, our version of Facebook for Android built for emerging markets, in June of 2015.
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