Ask HN: Software pricing criteria for startups/freelancers?

Can anyone share how do you price your software? As startup/freelancer the software will not be as popular compared to the big players out there, so high price may hurt. Likewise too low will starve you.

Is there an effective mechanism to price based on customer? ie. if customer is individual, low price, otherwise, high. But it seems to be easily exploitable.

Any insights? It would be great to know exact methods you use to measure LOCs, intangible costs such as time spent, and anything else.