When the Screen Gets Smaller, Thinking Gets Bigger

Building Golden 24 for Apple Watch required more than shrinking an iPhone app. It required rethinking every interaction from the ground up.

Twenty-four hours earlier, Golden 24 did not exist on Apple Watch.

The mathematics wasn't the challenge.

The screen was.

Golden 24 was originally designed around dragging cards on an iPhone. On a watch, there isn't enough room for that experience. Every interaction had to be reconsidered:

• Tap one card • Tap another card • Choose an operation • Build an expression • Continue until 24

Small screens force decisions.

Every button competes for space. Every gesture must justify itself. Every piece of information has to earn its place.

One of my favorite discoveries appeared while solving this problem.

The watch needed a way to display the current expression. Horizontal space was limited, but the diagonal of a card turned out to be the longest available line on the screen. Instead of fighting the constraint, we used it.

The expression now stretches diagonally across the card, making surprisingly good use of the available space.

The screenshot below shows an actual hand from the watch simulator:

🃏 2, 7, 8, 9

Can you reach exactly 24 using +, −, ×, and ÷?

What I enjoy most about projects like this is the reminder that progress rarely comes from giant leaps. It comes from solving one small problem, then the next one, then the next.

A tiny screen.

A clear goal.

A series of small decisions.

Sometimes that's all it takes to bring a new idea to life.

🌱 iOS Dream Team Small circles. Big thinkers.