Cost of living in Tangier (Morocco) is 67% cheaper than in Geneva (Switzerland)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 663 prices entered by 87 different people.
For example, to keep the same standard of living that would require CHF 10,000 in Geneva you would need to make just about CHF 3,271 (31,421 Dirham) in Tangier.