12Calc

Ernest Brock

Finance

Is 12Calc ready for iPhone Duo?

Not ready

Runs in an iPhone-sized window with black bars on both sides.

Built with the iOS 26 SDK or older.

Version
3.0
Last App Store update
Sep 1, 2025
Checked daily
3 hours ago

12Calc

12Calc

Its iPhone screenshot, from the App Store

12Calc on the inner screen: runs in an iPhone-sized window with black bars on both sides. It gets 1,127 × 2,007 pixels, drawn to the geometry measured in the simulator.

How we know

How we decide
  1. Release date

    Last updated Sep 1, 2025, before the iOS 27 SDK existed, so it can’t fill the screen.