Google is company for collecting information to sell for advertisors. Usually you use google account for all these utility softwares and sum of your activities, preferences and interests goes in unique customer id. That id then can be targeted with very specific ads that with high likelyhood will turn into purchase of some product.
Ingich t1_jd37twk wrote
Reply to ELI5: Why does Google offer all these free services like Google Docs, Sheets, Drive, Sites, Forms, etc. without any ads on them? How does Google benefit from this and why do they invest so much in creating and maintaining them? by Elena_Edie
Google is company for collecting information to sell for advertisors. Usually you use google account for all these utility softwares and sum of your activities, preferences and interests goes in unique customer id. That id then can be targeted with very specific ads that with high likelyhood will turn into purchase of some product.