With newly added iOS 12 support, today I’m excited to announce that Mona will be free to use on iPhone 5s, iPhone 6, and iPhone 6 Plus, making the Mastodon experience accessible to more people around the world.

@MonaApp Maybe it’s just a bad translation, but your post suggests that Mona will cost $/€0 (zero, nothing) on older devices.

How can you charge different prices for the same App depending on the iOS version?

Or will it be (yet another) separate App?