New Delhi, Sept. 18 -- Who doesn't love a free burger?

Burger King is treating customers to a free Bacon Cheeseburger with a $1 purchase - on Friday, September 18 - on the occasion of National Cheeseburger Day.

According to Burger King, the offer is available at participating US Burger King restaurants, only on the BK App and bk.com for order ahead.

As per the fast-food chain, having a Royal Perks account is mandatory to grab your free bacon cheeseburger. The offer can only be redeemed once per account, but it can't be combined with any other coupons or discounts.

On Saturday, September 19, customers can also redeem a free Whooper Jr. with a $1 purchase. The deals continue over the weekend with Burger King offering a free Cheeseburger...