Advanced Flat Rate extension for Magento 2 is extended from Magento default flat rate shipping method. It provides admin the flexibility to define flat rate for products for different destinations. So admin can decide specific flat rates for specific countries.
Admin can define flat rate by fixed amount or percent amount.
Admin can set the rate calculation method as per order basis or per item basis.
Admin can enable or disable this shipping method.
Admin can define the flat rate according to the destination like country, state, city, zip code.
Admin can import and export the flat rates in CSV files.
Admin also has the facility to add country wise flat rates.