Facebook's Messenger Lite lights up old Android phones
Found on CNet News on Monday, 03 October 2016

Facebook Messenger Lite, announced Monday, takes up a much smaller amount of a phone's storage -- just 10 megabytes -- than the full-fat app that most users have installed on their phones, and it has been pared back so that it runs peppily over slower-than-average networks. It is the companion app to Facebook Lite, a stripped-down version of the social network, also for old Android phones, launched in 2015.
Better use one of the various alternatives than that sniffing network.