I am making $85/hour as Senior iOS Engineer in Los Angeles. My client has "sub-contracted" me for $120/hour to their clients in San Francisco that has $25mil+ funding. Do you think my client is charging low too? Its super competitive and I have not seen anyone charge > $150/hour.
It depends. Is this a 40 hour / week gig? If so, rates for those sorts of contracts can be commensurately lower than ad-hoc projects.
Suppose I am developing websites using wordpress on GoDaddy. Would you still charge the same?