@Kaz: The problem is I don't want to give equity to my employees. In fact Im not looking for a co-founder. But I will be glad to hear about other ideas to offer them?
@Bebs: Thanks for guides. I live in Iran. What I offered them was equal to what other famous companies maybe offering them. But it seems I must pay them more, but I don't know how much? I don't like to over pay and do an expensive project when it wasn't needed.