Summing up, if you want to save money in order to invest it into marketing your product, the best solution for you will be to hire application developers in Asia or Eastern Europe. For example, in Ukraine, software engineers charge from $30 to $70 per hour, while in Asia, especially in India, these prices are in the range of $10 to $40 per hour, while in the Philippines this ranges between $15 and $30. We know you'll make the right choice!