apple inc. is an american multinational technology company that specializes in consumer electronics, software and online services headquartered in cupertino, california, united states. apple is the largest technology company by revenue ( totaling us $ 3 6 5. 8 billion in 2 0 2 1 ) and as of june 2 0 2 2, it is the world's biggest company by market capitalization, the fourth - largest personal computer vendor by unit sales and second - largest mobile phone manufacturer