Subway is cutting the price on its footlong sub, joining the value menu battle

Subway's footlong sandwiches are getting a new price. 

Beginning Aug. 26, all footlongs will cost $6.99, down from a high of as much as $14 in some markets, the food chain said Friday. It marks Subway's foray into the value menu wars as fast-food restaurants try to to win back customers who say food prices are too high. 

The offer, only available for purchases made through Subway's app or website with code "699FL," will end Sept. 8. Subway overs 22 different sandwich varieties, and customers can also create their own custom subs.