Depending on the complexity of an app, a developer can charge $5,000 to $20,000 for simple or moderately complex apps. For apps with high complexity, it can go up to $200,000 per project. In Asia, rates can range from $20 to $50 per hour, with Eastern Europeans and Latin Americans charging $30 to $75 per hour and the highest being $100 to $200 per hour in Western Europe and North America.