Rational Plaques

Many times more powerful and flexible than the native Shopify import/export tool. Matrixify is a must have if you have app when: 1. you have lots of products and variants to update 2. you want to optimize Google Merchant Center feed (and other feeds) 3. you have regular updates for price, cost, inventory, availability et cetera from master product file 4. you have meta data

Fast to set up. Looks promising!