Facebook is urging people to download yet another one of its apps after shoving users towards Messenger. This time, the social network has begun sending out warnings that their synced photos will be deleted by July 7th if they don't install the Moments app. Facebook gave users the capability to auto-sync their photos on mobile with a private album within its app back in 2012. Three years later, it introduced the standalone Moments app for iOS and Android to house those photos, but it clearly decided to wait a while before phasing the old feature out completely.