Slightly formal/business term. Often appears in marketing copy and financial news. In casual speech, 上市 ('go on the market') is much more common for product launches.
memory
应 (yìng, 4th tone) = 'to respond to' (different from 应 yīng 'should'); 市 (shì) = 'market'. Read it as 'meet the market' - products meeting consumer demand by appearing on shelves.
