Cost of living in Santo André (Brazil) is 31% cheaper than in Al Ain (United Arab Emirates)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 398 prices entered by 23 different people.
For example, to keep the same standard of living that would require Dirham 20,000 in Al Ain you would need to make just about Dirham 13,736 (R$ 14,503) in Santo André.