Utilize the input text as a context reference, choose the right relationship between things and iOS from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

iOS has the ability to completely transform workflows through mobility, so completely changing the relationship between teacher and student, changing the relationship between physician and patient, between corporate and retail stores that are out there no longer having a corner where you buy things at but actually make the point of sale at literally the point of sales.

Answer: platform