AdvertisementAt The Mercy Of An App: Workers Feel The Instacart SqueezeNovember 25, 2019Alina SelyukhfacebookEmailTeri Smith is one of over 130,000 workers who shop for and deliver groceries for Instacart. Smith, 46, has worked for Instacart in Arlington, Texas, since August 2018. (Allison V. Smith for NPR)