I was charging $1 for my game, but occasionally people would pay $2 so I assumed I was undervaluing my own game, so recently upped the price to $2.
Recently I added a new version with more content & a previous buyer has complained that they now have to pay another $2 to access the new content.
Is this true? Because I thought as this person has already paid $1, the most they would have to pay is another $1 to make it up to £2. Am I right or will all previous buyers now have to pay the full $2?