Describe an iOS screen. Watch it appear on your iPhone. Claude Code is the design tool. Simulator is the canvas.
Terminal pro? works too.
01 / Speedrun
One terminal command, one tap on your iPhone. You're in the simulator before your coffee's cold. No Xcode wrangling after the first install.
02 / Pure rizz
Real iOS gestures. Real haptics. Real native scrolling. The kind of fidelity that holds up in a design review, on the same stack production apps ship on (Expo UI on React Native).
03 / Loaded
Ready from day one. Reanimated, Skia, and Lottie too. Drop in a live map, run a Skia canvas, play a Lottie file. No npm hunting. No build wrangling.
Free on your Mac. One window, real iPhone preview.
Terminal pro? works too.
macOS on Apple Silicon · Claude Code · Xcode
See it in action
Protomaxxing
Building prototypes locally is always free. Plus is for sharing them further and exporting Studio clips that look the part.
$8 / month, or $80 a year.
Share up to 10 prototypes at a time with links that last 30 days. Anyone can run them natively on iPhone with the free Prototo app.
$npx proto shareExport in 4K, save GIFs, drag to rotate the 3D phone, and drop the “Made with Prototo” watermark.
$npx proto record