Facebook for SIM, also called LinqUs Facebook for SIM, is a client/server SIM application developed by international digital security company Gemalto that enabled people to access Facebook using the SMS protocol on their mobile phones, without needing a data plan.[1][2] Facebook cooperated closely with Gemalto in the development of the product.[3] Carriers that were partnering with Gemalto to offer this service included Entel in Chile, Tigo in Colombia, and Telecom Personal in Argentina.[1]
Gemalto first announced Facebook for SIM at the Mobile World Congress in Barcelona, Spain.[3][4][5]
The service launched in October 2011, with the carrier Telecom Personal in Argentina being the first carrier to adopt it.[2]
In September 2013, Gemalto updated Facebook for SIM to include Facebook Messenger.[6][7]
Since then, the service has been decommissioned.[8]