LiveRecord
For Lightning Experience, this combination of a platform event (GA Summer '17) and a Lightning Component that implements the streaming api gives admins the ability to make records update live when changed from any other application or user.
Some simple Process Builder knowledge is required.
Demo video here https://www.youtube.com/watch?v=RBriCkS4mho
Managed Package here (pending AppExchange approval): https://login.salesforce.com/packaging/installPackage.apexp?p0=04tB0000000Ln7i
Requires v40+ (Summer17).