For those that uses twitter very well, data useage might turned out to be an issue because; it will load up stories in your timeline, multimedia, GIFs, videos and the likes which consumes a lot of data.
Facebook also introduced a lite app for the low data users to save them the cost of buying data often. Twitter knows that not everyone can afford to gulp on data so they introduced the lite version.
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Twitter Lite is a mobile web version of the site which offers a minimalist UI and, in data saver mode, uses tricks live image previews to save on the initial data load instead of automatically loading each full image or video (and they’ll also tell you how much data it’ll cost to load that content).
